The dimensions of the rectangle is length = 5ft and width = 3ft
Define System of equation
A system of equations is a set of one or more equations involving a number of variables. The solutions to systems of equations are the variable mappings such that all component equations are satisfied—in other words, the locations at which all of these equations intersect.
Let,
x = length of rectangle
y = width of rectangle
Next, set up system of equation
We have given, the length of a rectangle is 5 ft more than twice its width.
x = 2y + 5 --------(a)
Next, The area of the rectangle is 33 ft²
xy = 33 ----------(b)
x = 33/y
substitute the value of x in eq(a)
x = 2y + 5
33/y = 2y + 5
33 = 2y² + 5y
2y² + 5y - 33 = 0
Factor it,
2y² + 11y - 6y - 33 = 0
y( 2y + 11) - 3( 2y + 11) = 0
(y - 3) (2y + 11) = 0
Split the values,
y - 3 = 0 and 2y + 11 = 0
y = 3 and y = -11/2 (ignore this as width cannot be -ve)
Substitute y = 3 in eq(b)
x * 3 = 33
x = 11
So, we get
length = 11 ft and width = 3 ft
Hence, the dimensions of the rectangle is length = 5ft and width = 3ft
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a student is taking a multiple-choice exam that has 7 test questions and each has 4 options. assume that the student has no knowledge of the subject material but guesses the correct answer with a probability of 0.75. what is the probability that she will answer at most 3 questions correctly?
She has a 0.0755 chance of accurately answering three questions at most.
Given data;
A student is completing a multiple-choice exam that consists of 7 questions and 4 possible answers. Suppose the student guesses the right response with a probability of 0.75 while not knowing the topic.
The terms are expanded using the binomial theorem.
7 questions total.
The probability of doing it right is 0.75.
The chance of getting it wrong is 1 - 0.75 = 0.25
The likelihood that she will accurately respond to no more than three questions is indicated as;
\(P = ^nCr p^rq^n^-^r\)
\(P = ^nCo (0.75)^r(0.25)^n^-^r\)
Here, r ranges from (0, 1, 2, 3)
\(P = ^7Co (0.75)^o(0.25)^7+^7C1 (0.75)^1(0.25)^6+^7C2 (0.75)^2(0.25)^5+^7C3(0.75)^3(0.25)^4\)
\(P = (0.25)^7+7(0.75)^1(0.25)^6+21(0.75)^2(0.25)^5+35(0.75)^3(0.25)^4\)
P = 0.0755
Therefore, the probability that she will answer at most 3 questions correctly is 0.0755.
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Find the value of w.
Answer:
75 degrees
Step-by-step explanation:
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your answer is 93.
Step-by-step explanation:
180-93= 87
180-87= 93.
pls mark brainless if you could! good luck!
Physical Science A ball is dropped from a height of 900 centimeters. The table shows the height of each bounce. The heights form a geometric sequence. How high does the ball bounce on the 5th bounce?
the ball bounces i believe t
Step-by-step explanation:
ken needs to order 8 new uniform for the soccer team. Each uniform cost $14 and a pair of shorts. The cost of the shorts, c is unknown. 2 equivalent expressions for the cost of 8 uniforms
The equivalent expressions for the costs are 8 * (14 + c) and 112 + 8c
How to determine the total cost?The given parameters are:
Number of uniform = 8
Cost of each = $14
The cost of the uniforms and the shorts is then calculated as:
Cost = Number of uniforms * (Cost of uniform + Cost of short)
This gives
Cost= 8 * (14 + c)
Expand
Cost = 112 + 8c
Hence, the equivalent expressions for the costs are 8 * (14 + c) and 112 + 8c
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Find the value of k if the slope of the line 2x-ky+3=0 is 5/3
Answer:
6/5
Step-by-step explanation:
2x+3=ky
ky=2x+3
y=(2x+3)/k
y=2x/k + 3/k - > equation 1
y=mx + c - >equation 2
Comparing equation 1 and 2,
2/k=m
2/k=5/3
6/5=k
k=6/5
How many degrees are in a third of a full
Answer:
120
Step-by-step explanation:
the purpose of this test is to evaluate the effects of rotational acceleration on the semicircular ducts and dynamic equilibrium. This test is called_____.
The purpose of this test is to evaluate the effects of rotational acceleration on the semicircular ducts and dynamic equilibrium. This test is called Rotational Acceleration Test.
The purpose of the rotational acceleration test is to assess how the semicircular ducts and the body's dynamic equilibrium respond to rotational movements. The semicircular ducts are part of the vestibular system, which is responsible for detecting changes in head position and rotational movements.
During the test, the individual is subjected to controlled rotational acceleration, usually in a specially designed chair or device. The rotational acceleration induces a sense of spinning or movement, stimulating the semicircular ducts.
By observing the individual's responses, such as eye movements or changes in body posture, healthcare professionals can gather information about the functioning of the vestibular system and the body's ability to maintain balance.
This test is particularly useful in diagnosing disorders of the vestibular system, such as vestibular dysfunction, vertigo, or balance disorders. It helps healthcare providers determine the extent of the impairment and develop appropriate treatment plans or interventions to improve balance and reduce symptoms.
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The telephone at the family store rang 156 times in the morning, a bunch during lunch, and 201 times that afternoon. During the whole day the phone rang 562 times. How many times did it ring at lunch?
Data
• Morning: 156 times
,• Lunch: x times
,• Afternoon: 201 times
,• Whole day: 562 times
Procedure
To know how many times did it ring at lunch, we have to build a relation, in which we know that the addition of the times in the morning, lunch, and afternoon equal the times it rang the whole day:
\(156+x+201=562\)Then, we have to solve for x considering that it represents the times it rang during the lunch.
\(156-156+x+201-201=562-156-201\)\(x=562-156-201\)\(x=205\)Answer: It rang 205 times during the afternoon.
the terms in the sequence increase by the same amount each time ? ? 17 ? ? 29 a)work out the missing terms b)work out in terms of n the nth term of the sequence
Answer:
The missing terms are 9,13,21 and 25
The nth term is 4n + 5
Step-by-step explanation:
From the arrangement, we can see that 17 is the third term while 29 is the 6th term
Now is this sequence arithmetic or geometric?
Since it increases by the same amount each time, then it is an arithmetic sequence.
Mathematically the third term in an arithmetic sequence with first term a and common difference d is ;
a + 2d = 17 •••••(i)
While for the sixth term, we have
a + 5d = 29 ••••••(ii)
The equations are obtainable for the nth term of an arithmetic sequence which can be written as;
Tn = a + (n-1)d
where a is the first term, n is the term number and d is the common difference
Now solving both equations simultaneously;
We can subtract equation i from ii
Thus;
5d-2d = 29-17
3d= 12
d = 12/3 = 4
we can substitute the value of d in any of the equations to get a
let’s use 1
That would be;
a + 2d= 17
a + 2(4) = 17
a + 8 = 17
a = 17-8
a = 9
Now the first term is 9
Second would be 9 + 4 = 13
Fourth would be 3rd + d = 17 + 4 = 21
Fifth would be 4th + d = 21 + 4 = 25
So the sequence now correctly arranged would be;
9,13,17,21,25,29
where 9,13,21 and 25 are the missing terms
b. Mathematically the nth term of the sequence is
a + (n-1)d
let’s substitute the values of a and d , we have
9 +(n-1)4
9 + 4n-4
4n + 5
Mrs. Reyes lost 3 kg when she was ill. After recovering, she gained 7 kg. She went to a
fitness center and lost 2 kg. How much did she finally loss or gain?
1. What is asked in the problem?
a. The weight she finally lost or gained.
b. The weight she lost because of illness.
c. The weight she gained after recovering.
d. The weight she lost when she went to a fitness center.
2. What are given in the problem?
a 3, 7, and 2
c. 3, -7, and 4
b. -3, 7, and -4
d. -3, -7, and -4
3. What is the operation involve in the problem?
a. addition
c. multiplication
b. subtraction
d. division
4. What is the number sentence for the problem?
a. (-3) + (+7) + (-4) = N
b. (-3) - (+7)-(-4) = N
c. (-3) x (+7) x (-4)
d. (-3) = (+7) + (-4)
5.Did she lose or gain?By how much?
a.By 6kgs
b.by 3kgs
c.by 2kgs
d. she didn't gain nor lose
Answer:
1a
2b
3b
4b
5d
i think this is it
Sergio wants to buy the newest Jordans. They cost $210. Sergio plans to save $12 each month. His mom is going to give him $50. Write an equation to find x, the number of months it will take him to save the needed money.
(WHAT IS THE EQUATION?)
Answer:
12x + 50 =210
Step-by-step explanation:
Given the data on the world problem, we know that one of our terms will be 12x because it says "each month" in the problem. If his mom is going to give him 50 dollars, and the Jordans cost 210, then we can write a simple equation.
x = number of months it will take him
\(12x+50=210\)
Answer: 5.8=x
Step-by-step explanation:
$210=Price
$12=Each Month
$50=From Mom
120-50=70
70/12=5.8 Months
please help someone: what is the sign of x^59/2.3x × 4/5 when x<0
answer choices:
negative
positive
zero
Answer:
positive
Step-by-step explanation:
x^59/2.3x × 4/5 = x^58 × 10/23 × 4/5 = x^58 × 8/23
x has even power so, it will have positive sign regardless of value of x
Angle x = 98 WZ = YZ angle Y = 92 find each measurement (the figure is not drawn to scale)
The measurements in the given figure are as follows: Angle Z = 82° Angle W = 88° Angle YZWX = 92° Angle YZW = 88°
Given that the figure is a cyclic quadrilateral, we know that the opposite angles in the quadrilateral are supplementary (their sum is 180 degrees). We can use this property to find the missing measurements in the figure.
Given information:
Angle x = 98°
WZ = YZ
Angle Y = 92°
Step 1: Find angle Z.
Since angles x and Z are opposite angles in the cyclic quadrilateral, their sum is 180 degrees:
Angle Z = 180° - Angle x
Angle Z = 180° - 98°
Angle Z = 82°
Step 2: Find angle W.
Since angles Y and W are opposite angles in the cyclic quadrilateral, their sum is 180 degrees:
Angle W = 180° - Angle Y
Angle W = 180° - 92°
Angle W = 88°
Step 3: Find angle YZWX.
Since angles W and Z are opposite angles in the cyclic quadrilateral, their sum is 180 degrees:
Angle YZWX = 180° - Angle W
Angle YZWX = 180° - 88°
Angle YZWX = 92°
Step 4: Find angle YZW.
Since angles YZW and YZWX are adjacent angles in the cyclic quadrilateral, their sum is 180 degrees:
Angle YZW = 180° - Angle YZWX
Angle YZW = 180° - 92°
Angle YZW = 88°
In summary, the measurements in the given figure are as follows:
Angle Z = 82°
Angle W = 88°
Angle YZWX = 92°
Angle YZW = 88°
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Note the figure is
The asphalt mixture has lots of distress when it is subjected to high and low temperatures, and to mitigate such distresses new materials were used as a modifier of asphalt binder or mixture. List down these distresses and classify them according to the main cusses high or low temperatures, moreover, briefly mentioned the modifiers and what are the significant effects of it in the asphalt binder or mixture
The distresses experienced by asphalt mixture due to high and low temperatures can be mitigated by using new materials as modifiers of the asphalt binder or mixture.
Distresses caused by high temperatures:
1. Rutting: This is the permanent deformation of the asphalt mixture due to the excessive pressure exerted by heavy traffic. It leads to the formation of ruts or grooves on the road surface.
2. Fatigue cracking: This is the formation of cracks in the asphalt pavement due to repeated loading and unloading of the pavement under high temperatures. It reduces the overall strength and life of the pavement.
Distresses caused by low temperatures:
1. Thermal cracking: This is the formation of cracks in the asphalt pavement due to the contraction and expansion of the asphalt binder under low temperatures. It occurs primarily in areas with significant temperature variations.
2. Cold temperature stiffness: This is the reduced flexibility of the asphalt binder at low temperatures, leading to decreased performance and increased susceptibility to cracking.
Modifiers and their significant effects:
1. Polymer modifiers: These are materials added to the asphalt binder or mixture to improve its performance at high and low temperatures. Polymers enhance the elasticity and flexibility of the binder, making it more resistant to rutting and cracking.
2. Fiber modifiers: These are fibers added to the asphalt mixture to increase its tensile strength and resistance to cracking. They help in reducing the formation of cracks, especially under low-temperature conditions.
3. Warm mix asphalt (WMA) additives: These additives allow the asphalt mixture to be produced and compacted at lower temperatures compared to traditional hot mix asphalt. WMA reduces the energy consumption during production and offers improved workability and compaction.
By using polymer modifiers, fiber modifiers, and warm mix asphalt additives, the distresses caused by high and low temperatures in the asphalt binder or mixture can be mitigated. These modifiers enhance the performance of the asphalt pavement by improving its resistance to rutting, fatigue cracking, thermal cracking, and cold temperature stiffness.
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Marta and her brother are saving their money to buy a basketball that costs $45. If Marta has $29.75 and her brother has $18.50, do they have enough money together to buy the basketball?
PLEASE HELP BRAINIEST!❤️
Answer:
B Q¹(1,2).............
The diagram shows the molecular structure of water. A diagram representing a molecule of water is shown. There is an O at the top with an H branching to its left and another H branching to its right. The ratio of hydrogen atoms to oxygen atoms in water is always the same. How many oxygen atoms (O) are there when there are 8 hydrogen atoms (H)? Enter the correct answer in the box. oxygen atoms
By using ratio, it is obtained that if there are 8 atoms of hydrogen, there are 4 atoms of oxygen.
What is ratio?
Ratio is used to find a comparision between two quantities with the same unit
The first part of the ratio is called antecedant and the second part of the ratio is called consequent.
Here,
In a molecule of water, there are 2 atoms of hydrogen and 1 atom of oxygen
Ratio of hydrogen and oxygen = 2 : 1
Number of atoms of hydrogen = 8
Let the number of hydrogen atom be 2x and number of oxygen atom be x
By the problem,
\(2x = 8\\x = \frac{8}{2}\\x = 4\)
Number of oxygen atom = 4
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after the equal employment opportunity commission (eeoc) completes its investigation in an employment discrimination case, _____.'.
After the EEOC completes its investigation in an employment discrimination case, the outcomes can include resolution attempts, lawsuits, or issuing a Notice of Right to Sue to the complainant.
After the Equal Employment Opportunity Commission (EEOC) completes its investigation in an employment discrimination case, several outcomes are possible:
The EEOC may find reasonable cause to believe that discrimination has occurred. In this case, they may attempt to resolve the matter through informal methods such as mediation or settlement negotiations. If these efforts fail, the EEOC may file a lawsuit against the employer on behalf of the aggrieved individual(s).
If the EEOC does not find reasonable cause, they will issue a Notice of Right to Sue to the individual who filed the complaint. This allows the individual to pursue a lawsuit against the employer independently.
In some cases, the EEOC may determine that further investigation is needed, and they may request additional information or evidence from both the complainant and the employer.
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two cars leave the same parking lot, with one heading north and the other heading east. after several minutes, the northbound car has traveled 3.1 kilometers, and the eastbound car has traveled 8.3 kilometers. measured in a straight line, how far apart are the two cars? if necessary, round to the nearest tenth.
The two cars are 10.5 kilometers apart, measured in a straight line.
This is calculated by taking the square root of the sum of the squares of the distances traveled by the two cars (3.1 km and 8.3 km). The square root of (3.1² + 8.3²) is 10.47, which can be rounded up to 10.5.
To calculate the distance between the two cars, we first need to calculate the sum of the squares of the distances traveled by the two cars (3.1 km and 8.3 km).
3.1² + 8.3² = 68.49
Next, we take the square root of this sum to get the distance between the two cars in a straight line:
√68.49 = 8.25
Finally, we round this number up to the nearest tenth, giving us the final answer of 10.5 kilometers.
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While making desserts for Fun Day, Methuki used 5/6 of a scoop of brown sugar as well as 1/2 of a scoop of white sugar. How much more brown sugar did she use?
Hey there! I'm happy to help!
We want to find how much more 5/6 is than 1/2. To do this, we simply subtract 1/2 from 5/6. This will show us how much more 5/6 is.
First, we multiply 1/2 by 3/3 so that the denominator is 6.
1/2×3/3=3/6
Now, we subtract this from 5/6.
5/6-3/6=2/6
We can simplify this to 1/3.
Therefore, Methuki used 1/3 scoop more of brown sugar than white sugar while making desserts for Fun Day.
Have a wonderful day! :D
rove that any abelian group of order 100 has an element of order 10. does every abelian group of order 100 have an element of order 4?
Considering that G is an abelian group of order 100, Cauchy's Theorem suffices in place of Sylow's Theorems: G has an element of order 2 and an element of order 5 since the numbers 2 and 5 divide |G|.
What is and abelian group?
An abelian group, also known as a commutative group in mathematics, is a set of elements where the outcome of performing a group operation on two members of the set does not rely on the order in which the items were written. That is, commutative group operations are possible.
You are required to demonstrate that an element of order 10 must be present in an abelian group G of order 100 in the first portion of the issue. To enumerate the possibilities for H and K in this section, we apply the Sylow theorem. \(|H| = 2^2 and |K| = 5^2\) Since there is no subgroup of order 25, K must be normal, although H may not be since 125 mod 2. I also demonstrated that HK=G and that their sole shared property is the identification element.
If H and K are healthy, that is. G has to be isomorphic to one of the groups listed below:
\(Z_4 X Z_25\\ Z_2 X Z_2 X Z_25\\ Z_4 X Z_5 X Z_5\\ Z2 X Z2 X Z5 X Z5\)
Considering that G is an abelian group of order 100, Cauchy's Theorem suffices in place of Sylow's Theorems: G has an element of order 2 and an element of order 5 since the numbers 2 and 5 divide |G|. Then, a+b=0 (writing the groups additively), and this readily demonstrates that a+b has order 10:
k(a+b)=0
⟺ka+kb=0
⟺ka=−kb
⟺ka,kb∈{0
}⟺2|k and 5|k
⟺10|k.
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Graph this function:
y = |x − 3| + 1
Click to plot the vertex first.
Given function:
y = |x − 3| + 1
Table:
x y
1 3
2 2
3 1
4 2
5 3
Here the vertex is (3,1).
Graph is in the image uploaded.
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a researcher wants to compare performance scores for men versus women on a motor skills task. it would not be possible to use a repeated measures design for this study. true or false
True, a researcher wants to compare performance scores for men versus women on a motor skills task. it would not be possible to use a repeated measures design for this study.
What is a performance comparison?
They are frequently used while benchmarking, which is the practice of evaluating an organization's performance versus that of the best-performing businesses.
The measures are employed in productivity improvement projects to monitor changes in productivity over time.
Why is performance measurement important?
Comparing is one of the most important growth drivers. Only when we contrast our development with that of our rivals or our current performance with our former performance do we get motivated to advance and accomplish greater feats.
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What is the length of line Bc
Answer: sorry if i am wrong but i think it is c or a
Step-by-step explanation:
Alex surveyed twenty boys from his class. He asked their height in centimeters and their
shoe size. Alex wanted to know if these two variables were related. He graphed the
results on the coordinate plane. Each graph below shows Alex’s data.
Which of the graphs shows the BEST linear fit for the data?
The graph that shows the best linear fit for the data is graph B.
What is graph?Graph is a data structure composed of nodes connected by edges, which represent a relationship between the two notes of are used to represent networks of communication that organized and even extract concept like thought or riders the nodes in the graph are often represent by Circle and it's by line but the other safe of the symbol are also use copper power Bluetooth for a organizing and understanding data and can be used to solve complex problem.
Graph B shows a line that passes through the majority of the data points, indicating a strong positive correlation between the two variables. This means that as the height in centimeters increases, the shoe size also tends to increase. Graph A shows a less distinct line that doesn't pass through as many points as graph B, indicating a weaker correlation. Graph C does not show a linear fit, as the data points are scattered throughout the graph.
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The length of a text messaging conversation is normally distributed with a mean of 2 minutes and a standard deviation of .5 minutes. What is the probability that a conversation lasts longer than 3 minutes? (1 point)
0.043351
0.063748
0.02275
0.095424
The correct answer is 0.063748.
We can use the formula Z = (x - μ) / σ to find the Z score for a conversation lasting longer than 3 minutes. We know that μ = 2 minutes and σ = .5 minutes. So, Z = (3 minutes - 2 minutes) / .5 minutes = 1.0. Now, we can use the z-score table to find the probability that a conversation lasts longer than 3 minutes. The z-score table shows that the probability that a conversation lasts longer than 3 minutes is 0.063748.
PLEASE HELP ME WITH THIS
Answer:
since they are corresponding angle
(6x)°= (5x =10)°
or (6x) - (5x) = 10°
x = 10°
Tara and Veronica are making a parallelogram-shaped banner for a football game. They will paint the entire banner except for a rectangular section where a photo of the school's mascot will be placed. The photo of the mascot has an area of 6 square feet. If a 16-ounce bottle of primer covers 24 square feet, how many bottles of paint will they need?
The solution of the given problem of surface area comes out to be Tara and Veronica will need about 15.26 bottles of paint to cover the banner.
Describe Surface Area.Its surface area is a reliable indicator of its overall size. When figuring out the right triangle squared, the environment is taken into account. The surface area of everything determines its overall size. The total of the volumes from each of the twelve vertical sides makes up the water volume inside a cuboid. Utilize the following formula to get the box's dimensions: The region is represented by 2lh, 2lw, & 2hW. (SA). The area is represented by the flexible shape's entire surface area.
Here,
To calculate the number of paint bottles needed, we need to first find the area of the parallelogram-shaped banner.
Area = base × height
The apothem is given as 9.52 cm, which is also the height of one of the triangles. The base of each of these triangles is half of the length of the banner, which is 6.8/2 = 3.4 cm. Using the Pythagorean theorem, we can solve for the height "h" of each triangle:
h² = (9.52)² - (3.4)²
h ≈ 8.56 cm
So the total height of the parallelogram is twice this value, or approximately 17.12 cm. Therefore, the area of the banner is:
Area = b × 17.12
864 × 2.54² ≈ 5574.14 cm²
So the area of the banner is:
Area = b × 17.12 = 2(6.8 + b) × 8.56 - 5574.14
Simplifying this expression, we get:
Area = 17.12b - 226.67
Now we can solve for "b" by setting this expression equal to the area of the banner that can be painted:
16(24) = 384 square feet = 384 × 144 ≈ 55302.74 cm²
17.12b - 226.67 = 55302.74
17.12b = 55402.41
b ≈ 3232.87 cm
Finally, we can calculate the area of the painted portion of the banner:
Area painted = (6.8 + b) × 17.12 - 6
Area painted ≈ 5826.24 cm²
To find the number of paint bottles needed, we divide the area painted by the coverage of one bottle:
Number of bottles = Area painted / (16 × 24)
Number of bottles ≈ 15.26
So Tara and Veronica will need about 15.26 bottles of paint to cover the banner.
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What is an equation example?
The definition and explanation of an equation are given below with an example.
in mathematics, an equation is defined as an expression that expresses equality between 2 quantities or expressions. We use equations quite a lot in our daily lives whenever we have to equate two quantities and find out how they are equal. These are used in all branches of science because of the huge purpose they serve.
in simple words it tells what we have on the Left-Hand Side of the "=" sign is the same as what we have on the right-hand side of the statement. Some examples of equations are-
E²=m²c⁴+p²c²
x²+3x-1=0
70 oranges= 7 oranges × 10 oranges
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The proportion of a normal distribution located between z = .50 and z = -.50 is ____.
The proportion of a normal distribution located between z = .50 and z = -.50 will be 38.2%.
We have,
A normal distribution located between z = 0.50 and z = -0.50,
So,
Now,
From the Z-score table,
We get,
The Probability corresponding to the Z score of -0.50,
i.e.
P(-0.50 < X < 0) = 0.191,
And,
The Probability corresponding to the Z score of -0.50,
i.e.
P(0 < X < 0.50) = 0.191,
Now,
The proportion of a normal distribution,
i.e.
P(Z₁ < X < Z₂) = P(Z₁ < X < 0) + P(0 < X < Z₂)
Now,
Putting values,
i.e.
P(-0.50 < X < 0.50) = P(-0.50 < X < 0) + P(0 < X < 0.50)
Now,
Again putting values,
We get,
P(-0.50 < X < 0.50) = 0.191 + 0.191
On solving we get,
P(-0.50 < X < 0.50) = 0.382
So,
We can write as,
P(-0.50 < X < 0.50) = 38.2%
So,
The proportion of a normal distribution is 38.2%.
Hence we can say that the proportion of a normal distribution located between z = .50 and z = -.50 will be 38.2%.
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