A random sample of 80 people were selected and 50 were found to be male. The 95% confidence interval for the proportion of gamers based on the sample is (0.575, 0.825).
To calculate the confidence interval, we use the formula:
CI = "p ± Z * √("p(1-"p)/n)
where "p is the sample proportion, Z is the critical value corresponding to the desired confidence level (95% in this case), and n is the sample size.
In this scenario, the sample proportion "p is calculated by dividing the number of male gamers (50) by the total sample size (80), giving us "p = 50/80 = 0.625.
The critical value Z for a 95% confidence level is approximately 1.96 (assuming a large sample size).
Substituting the values into the formula, we have:
CI = 0.625 ± 1.96 * √(0.625(1-0.625)/80)
Calculating the values within the formula, we find:
CI = (0.575, 0.825)
Therefore, the 95% confidence interval for the proportion of gamers in the population, based on this sample, is (0.575, 0.825).
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Please help me I’m struggling
Answer:
$.80 or $0.80
Step-by-step explanation:
$4 = 5 apples so u divided that 4 divided 5 gives you .80
so answer is 80 cents
Answer:
$0.8 or $ .8
Step-by-step explanation:
Hopefully this helps you!
a symbol such as 2/3 or 1/2 used to name part of a whole pat of a set or a location on the number line is called ______
Please find the value of x
Answer:
x=8.4
Step-by-step explanation:
from;cos(36)=opp/hypcos(36)=x/10
cross multiply;x=10×cos(36)
x=10×0.8443
x=8.44
round up to the nearest tenth
so,x=8.4
Answer:
x = 8.1
Step-by-step explanation:
cos(c°) = \(\frac{adjacent}{hypotenuse}\), where c = 36, adjacent = x, and 10 = hypotenuse.
Therefore:
cos(36) = \(\frac{x}{10}\) (multiply both sides by 10)
10cos(36) = x
After plugging this into a calculator, you get:
8.0901699437 = x
Rounded to the nearest tenth:
x = 8.1
If the mZ1 = 57°, find the measure of Z6.
Answer:
123
Step-by-step explanation:
Malachy was thinking of a number. Malachy adds 2 to it, then doubles it and gets an answer of 99.8. What was the original number?
Answer:
47.9
Step-by-step explanation:
x + 2 = y
y × 2 = 99.8
99.8 ÷ 2 = 49.9
y = 49.9
49.9 - 2 = 47.9
x = 47.9
Seventeen more than the product of a number and -3 is less than -29
Answer:
x >46/3
Step-by-step explanation:
Do the product first because of the more than
-3x + 17 < -29
Subtract 17 from each side
-3x + 17 -17< -29-17
-3x < -46
Divide each side by -3, remembering to flip the inequality
-3x/-3 > -46/-3
x >46/3
Which graph has a slope of 4/5?
cant see pic
Answer:
Step-by-step explanation:
Alguien me ayuda .
(please help).
1) note that when graphed, 3x - 4y = 7 will show a straight line. This means that it is a linear equation.
2) when written in standard form, the above equations will become:
3x+y = 1 and4x -5y =23) the linear equation for the above is y = (-1/2)x + 150. See the graph attached.
What is a linear equation?A linear equation is one in which the variable's maximum power is always 1. A one-degree equation is another name for it.
A linear equation in one variable has the conventional form Ax + B = 0. In this equation, x is a variable, A is a coefficient, and B is constant.
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Please answer correctly !!!!! Will mark Brianliest !!!!!!!!!!!!!!
NO SCAM LINKS !!!!! ASAP
Answer:
sinL = \(\frac{72}{97}\)
Step-by-step explanation:
sin L = \(\frac{opposite}{hypotenuse}\) = \(\frac{KM}{LK}\) = \(\frac{72}{97}\)
Answer:
Step-by-step explanation:
a client shows you the greek vanilla yogurt he eats for breakfast most mornings. determine the calories from protein if the client eats 3/4 cup. 54 calories 72 calories 122 calories 162 calories
The number of calories from protein if the client eats 3/4 cup is 54 calories. So, the correct option is 54 calories.
Calories are a unit of energy. The energy needed to raise the temperature of 1 gram of water through 1 °C is equal to one calorie. Calories are the energy that food supplies to the body.
Calories from protein: Protein supplies 4 calories per gram. To calculate the total number of calories from protein, you must first know the amount of protein that the food item contains.
To calculate the calories from protein in Greek vanilla yogurt: Greek vanilla yogurt contains about 10 grams of protein per cup.
Therefore, Calories from protein = Protein x 4 = 10 x 4 = 40 Calories per 1 cup Greek vanilla yogurt
If the client eats 3/4 of a cup of Greek vanilla yogurt, the number of calories from protein would be:
Calories from protein = 40 Calories x 3/4 cup = 30 Calories
Hence, the correct answer is 54 calories.
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help me with math pl
A)
Car wash costs "3"
x gallons at $2.76 per gallon would cost "2.76x"
Total cost , y, is the sum so:
\(y=2.76x+3\)B)
b.
The graph is shown below:
c.
We put 8 into x of the equation to find the cost.
\(\begin{gathered} y=2.76x+3 \\ y=2.76(8)+3 \\ y=25.08 \end{gathered}\)
help meeeeeeeeeeeeee pleaseeeeeeeeee!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
can somebody help me 4/5 divided by 2/3
Answer:
8/15
Step-by-step explanation:
Answer: 1 7/8
5/4 x 2/3 = 15/8
Then simplify 15/8 and you get 1 7/8
Hope this helped!
help me in this please
Answer:
35 rows and 35 numbers of plants in a row.
Step-by-step explanation:
Mark as brainliest
Where can we put parentheses in 2 x 3+1 + 2 to make it equivalent to 12!Choose 1 answer:(2 x 3) + (1+2)B2 x (3+1+2)Stuck? Review related articles/videos or use a hint.Rep
Question:
Solution:
Note that:
\(2\text{ x (3+1+2) = 2 x(6) = 12}\)then, we can conclude that the correct answer is:
\(2\text{ x (3+1+2) }\)
Christian is driving on a long road trip. He currently has 12 gallons of gas in his car.
Each hour that he drives, his car uses up 1.25 gallons of gas. How much gas would be
in the tank after driving for 6 hours? How much gas would bbe left after t hours?
Question 10(Multiple Choice Worth 5 points)
(Identifying Functions LC)
The graph represents a relation where x represents the independent variable and y represents the dependent variable.
a graph with points plotted at negative 5 comma 1, at negative 2 comma 0, at negative 1 comma 3, at negative 1 comma negative 2, at 0 comma 2, and at 5 comma 1
Is the relation a function? Explain.
No, because for each input there is not exactly one output.
No, because for each output there is not exactly one input.
Yes, because for each input there is exactly one output.
Yes, because for each output there is exactly one input.
Is the relation a function:
No, because for each input there is not exactly one output.How to know if the relation is a functionTo determine if the relation is a function, we need to check if there is exactly one output for each input.
Looking at the given set of points, we see that there are two points with an x-coordinate of -1: (-1, 3) and (-1, -2).
This means that there are two outputs for the same input, so the relation is not a function.
Therefore, the correct answer is: "No, because for each input there is not exactly one output."
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5. The two rectangles are similar. Which is the correct proportion that can
be used to find the missing side?
12/4=x/20
12/4=x/8
12/8=x/4
4/12=x/8
Answer:
The second choice.
Step-by-step explanation:
Correspond sides are in the same ratio
12/4 = x/8
.
You are wearing a pair of cargo pants with six pockets. you put $10 on one of those pockets, but you cannot remember which one after checking two pockets without success, what is the possibility that the money will be in the next park view check?
Answer:
\(\frac{1}{4}\)
Step-by-step explanation:
According to the given information ,there still 4 pockets to check .
Then
the possibility that the money will be in the next pocket :
\(=\frac{1}{4}\)
Answer: Answer above me is correct
Anybody help me please!!!!!!!!!!
Answer:
A reflection over the x-axis.
Step-by-step explanation:
A reflection over the x-axis means that the x-coordinate stays the same, and the y-coordinate is now the negative of what it was. This describes what is shown in the photo.
Answer:
A reflection over the x- axis
A rectangular flower garden in Samantha's backyard has 140 feet around its edge. The width of the garden is 30 feet
What is the length of the garden?
Step-by-step explanation:
Perimeter would be (Base + Length) × 2
\((140 + 30) \times 2 = 340\)
Area would be Base × Length
\(140 \times 30 = 4200\)
can someone answer page 3 question 3, page 5 question 3, all of page 6
The answers to the questions involving trigonometry are: 90, BC/AB ÷ BC/AB = 1, g = 6.5, <I = 62 degrees, h= 13.8, 12.0, x = 6.8, x = 66.4, 160.6, The pole = 6.7
What is trigonometrical ratios?Trigonometric ratios are special measurements of a right triangle, defined as the ratios of the sides of a right-angled triangle. There are three common trigonometric ratios: sine, cosine, and tangent
For page 3 question 3,
a) <A + <B = 90 since <C = right angle
b) SinA = BC/AB and CosB = BC/AB
The ratio of the two angles BC/AB ÷ BC/AB = 1
I notice that the ratio of sinA and cosB gives 1
b) The ratio of CosA and SinB will give
BC/AB ÷ BC/AB
= BC/AB * AB/BC = 1
For page 5 number 3
Tan28 = g/i
g/12.2 = tan28
cross multiplying to have
g = 12.2*tan28
g = 12.2 * 0.5317
g = 6.5
b) the angle I is given as 90-28 degrees
<I = 62 degrees
To find the side h we use the Pythagoras theorem
h² = (12.2)² + (6.5)²
h² = 148.84 +42.25
h²= 191.09
h=√191.09
h= 13.8
For page 6
1) Sin42 = x/18
x=18*sin42
x = 18*0.6691
x = 12.0
2) cos28 = 6/x
xcos28 = 6
x = 6/cos28
x [= 6/0.8829
x = 6.8
3) Tan63 = x/34
x = 34*tan63
x= 34*1.9526
x = 66.4
4) Sin50 123/x
xsin50 = 123
x = 123/sin50
x = 123/0.7660
x =160.6
5) Sin57 = P/8
Pole = 8sin57
the pole = 8*0.8387
The pole = 6.7
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Express each of these statment using quantifires :
a) every student in this classes has taken exactly two mathematics classes at this school.
b) someone has visited every country in the world except Libya
Using quantifiers; a) ∀ student ∈ this class, ∃ exactly 2 mathematics classes ∈ this school that the student has taken and b) ∃ person, ∀ country ∈ the world (country ≠ Libya), the person has visited that country.
a) "Every student in this class has taken exactly two mathematics classes at this school."
In this statement, we have two main quantifiers:
Universal quantifier (∀): This quantifier denotes that we are making a statement about every individual student in the class. It indicates that the following condition applies to each and every student.
Existential quantifier (∃): This quantifier indicates the existence of something. In this case, it asserts that there exists exactly two mathematics classes at this school that each student has taken.
So, when we combine these quantifiers and their respective conditions, we get the statement: "For every student in this class, there exists exactly two mathematics classes at this school that the student has taken."
b) "Someone has visited every country in the world except Libya."
In this statement, we also have two main quantifiers:
Existential quantifier (∃): This quantifier signifies the existence of a person who satisfies a particular condition. It asserts that there is at least one person.
Universal quantifier (∀): This quantifier denotes that we are making a statement about every individual country in the world (excluding Libya). It indicates that the following condition applies to each and every country.
So, when we combine these quantifiers and their respective conditions, we get the statement: "There exists at least one person who has visited every country in the world (excluding Libya)."
In summary, quantifiers are used to express the scope of a statement and to indicate whether it applies to every element or if there is at least one element that satisfies the given condition.
Therefore, Using quantifiers; a) ∀ student ∈ this class, ∃ exactly 2 mathematics classes ∈ this school that the student has taken and b) ∃ person, ∀ country ∈ the world (country ≠ Libya), the person has visited that country.
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Is 12 even or odd? Pick you choice
Answer:
Even
Step-by-step explanation:
A blue ray player cost $187.60. A 20% down payment is required with monthly payments of $39.40 for 4 months. What is the price paid for the blue ray player? What is the finance charge?
cost = $187.60
20% down
4 months of $39.40
1.- Calculate the 20%
187,6 ------------------- 100
x -------------------- 20
x = (20 x 187.6) / 100
x = 3752/100
x = 37.52
2.- Calculate the final price
Price paid = 37.52 + 4(39.40)
Price paid = 37.52 + 157.6
= $195.12
2.- Finance charge
= 195.12 - 37.52
= $157.6
The diagonals of a _____ are congruent and perpendicular bisectors of each other
The diagonals of a Rhombus are congruent and perpendicular bisectors of each other
If a parallelogram contains a pair of consecutive sides that are called congruent, then it is considered a rhombus, or if a parallelogram bisects two angles of the same, then it is a rhombus.
If the diagonals of a quadrilateral are perpendicular bisectors to each other, then the quadrilateral is a rhombus.
There are general properties of a Rhombus are:
Opposite angles are congruent or equal.The opposite sides are equal and parallel.Diagonals bisect each other and the sum of any two adjacent or consecutive angles is 180°.To know more about Rhombus:
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- 2x + 4y = 17
3x - 10y = -3
Answer:
1.-2x+4y=17
if you want me to solve for x : x=-17/2 +2y
If you want me to solve for y: y=17/4+x/2
2. If you want me to solve for x: x=-1+10y/3
If you want me to solve for y: y=3/10+3x/10
3. If you want me to do it all together it would be:
x=-79/4, y=-45/8
Step-by-step explanation:
If you were to measure all the teams and find the average height of each team, then this would be a called a sampling distribution. What would be true about this collection of sample averages
The collection of sample averages, known as the sampling distribution, would have an average that is equal to the average height of the entire population.
When measuring the height of each team and calculating their average, we are essentially taking samples from the population of all teams. The sampling distribution is created by repeating this process multiple times and calculating the average for each sample. According to the central limit theorem, as the sample size increases, the sampling distribution approaches a normal distribution regardless of the shape of the population distribution.
Therefore, the average of the sampling distribution, which represents the average height of all teams, would be equal to the average height of the entire population. The sampling distribution allows us to make inferences about the population based on the collected samples and provides a measure of the variability of the sample averages.
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Please solve as soon as possible!
The value of the different trigonometric ratios given are:
sin θ = 0.923
tan θ = 2.4
sec θ = 2.6
How to solve Trigonometric ratios?There are different trigonometric ratios such as:
sin x = opposite/hypotenuse
cos x = adjacent/hypotenuse
tan x = opposite/adjacent
We are given:
cos(θ) = 10/26, 0 ≤ θ ≤ π/2
Thus, sin θ and cos θ will be in the first quadrant based on the interval given. Thus:
cos⁻¹(10/26) = 1.176
sin 1.176 in radians = 0.923
tan 1.176 in radians = 2.4
sec 1.176 = 1/cos 1.176 = 2.6
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One-third of the students in Mrs. Hayko's class walk to school. Of the students who do not walk to school, four-fifths take the bus.
a.) What fraction of the students in Mrs. Hayko's class take the bus to school?
b.) How many students might be there in her class?
Answer:
The possible number of students in Mrs. Hayko's class is limited to 15 or 30, as higher multiples of 15 would exceed the desired class size.
Step-by-step explanation:
a)
Let 'x' be the total number of students in Mrs. Hayko's class.
One-third of the students walk to school: (1/3)x.
The remaining students who do not walk to school: (2/3)x.
Four-fifths of the non-walking students take the bus: (4/5) * (2/3)x.
Simplify to find the fraction of students taking the bus: (8/15)x.
b)
Consider different values for 'x' to find a whole number of students taking the bus.
Start with a small number, such as x = 15.
Calculate the number of students taking the bus using (8/15)x.
If the result is a whole number, it's a possible class size.
Repeat with different values of 'x' until a whole number is obtained.
The possible number of students in Mrs. Hayko's class could be 15, 30, or any other multiple of 15.