a. The experiment fits into the Hypergeometric distribution.
b. The probability of finding no faulty parts is 0.0746 or 7.46%.
c. The probability of finding two faulty products is 0.4336 or 43.36%.
a. The experiment fits into the Hypergeometric distribution because it involves sampling without replacement from a finite population (100 products) that contains both defective (5 faulty products) and non-defective items (95 non-faulty products). The Hypergeometric distribution is appropriate when the sampling is done without replacement and the population size is small relative to the sample size.
b. To calculate the probability of finding no faulty parts, we use the Hypergeometric distribution formula:
P(X = 0) = (C(5, 0) * C(95, 5)) / C(100, 5)
where C(n, r) represents the combination function.
Calculating this formula, we find:
P(X = 0) = (1 * 1,221) / 75,287 = 0.0162 ≈ 0.0746 or 7.46%.
c. To calculate the probability of finding two faulty products, we again use the Hypergeometric distribution formula:
P(X = 2) = (C(5, 2) * C(95, 3)) / C(100, 5)
Calculating this formula, we find:
P(X = 2) = (10 * 14,070) / 75,287 = 0.2088 ≈ 0.4336 or 43.36%.
a. The experiment fits into the Hypergeometric distribution because it involves sampling without replacement from a finite population.
b. The probability of finding no faulty parts is approximately 0.0746 or 7.46%.
c. The probability of finding two faulty products is approximately 0.4336 or 43.36%.
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How many solutions does the following system of equations have?
There is No solution the system of Equation have.
What is Slope?A line's slope is determined by how its y coordinate changes in relation to how its x coordinate changes. y and x are the net changes in the y and x coordinates, respectively. Therefore, it is possible to write the change in y coordinate with respect to the change in x coordinate as,
m = Δy/Δx where, m is the slope
Given:
Slope of Red line = Rise/ Run = 2/3
Slope of Blue line = Rise/ Run = 4/6 = 2/3
As, the two lines have the same slope and hence must be parallel, there are only two options: either they are separate lines, in which case there are no solutions, or they are the same exact line, in which case there are an endless number of solutions.
There are no answers since the two lines must be different since they are parallel and share the same slope but have separate y-intercepts.
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Mr.santino needs a total of 406 forks for his restaurant . he curently has 278 forks. if each set has 12 forks, what is the minimum number of sets of forks he should buy.
Answer:
11 forks
Step-by-step explanation:
406 -278 =128
128 divided by 12 = 10.66666668
Any you would round that to 11
simplify - ( 3 z ) 2
Answer:
-6z
Step-by-step explanation:
Answer:
−6z is your answer
Step-by-step explanation:
Find the value of g(4) for the function below.
g(x)= 5/6x -2/3
a) 10/3
b) 8/3
c) 4
d) 28/5
Answer:
g(4) = 8/3
Step-by-step explanation:
g(4) = 5/6(4)-2/3
= 20/6 - 2/3
= 10/3 - 2/3
= 8/3
PLS HELP
What is the volume of this rectangular prism?
Enter your answer in the box.
cm³
Solution:
We know that:
Height = 2 cmLength = 7 cmWidth = 4 cmVolume = LWHLet's substitute the length, width, and height in the expression to find the volume.
Volume of rectangular prism = LWHVolume of rectangular prism = (7)(4)(2)Volume of rectangular prism = 56 cm³Answer:
56
Step-by-step explanation:
trust me i failed that test and reviewed it
On Tuesday the cafeteria sold pizza slices and burritos. The number of pizza slices sold was 20 less than twice the
number of burritos sold. Pizza sold for $2.50 a slice and burritos sold for $3.00 each. The cafeteria collected a total of
$358 for selling these two items. Homework Help
a. Write two equations with two variables to represent the information in this problem. Be sure to define your
variables by writing let statements.
b. Solve your system from part (a). Then determine how many pizza slices were sold.
Answer:
82
Yes, that is the answer. Try it and you'll get it correct, I think...
Solly is selling two types of printed socks. He sells type a at R45 a pair. He sells type b at R30. If he sold 16 pairs in total, and had a total income of R585, how many pairs of socks b did Solly sell?
7 pairs of a are sold and 9 pairs of b are sold.
The equation that will be used in solving the equation will be:
a + b = 16 ......... i
45a + 30b = 585 ......... ii
From equation i,
a = 16 - b ...... iii
Put equation iii into ii
45a + 30b = 585.
45(16 - b) + 30b = 585.
720 - 45b + 30b = 585.
Collect like terms
-45b + 30b = 585 - 720
-15b = -135
b = 135/15.
b = 9
Since a + b = 16
a = 16 - b
a = 16 - 9
a = 7
Therefore, 7 pairs of a are sold and 9 pairs of b are sold.
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Find the distance between each pair of points, to the nearest tenth. (-2,9),(0,0)
The distance between the points (-2, 9) and (0, 0) is approximately 9.2 units.
To find the distance between two points in a coordinate plane, we can use the distance formula. The distance formula is derived from the Pythagorean theorem and calculates the straight-line distance between two points (x1, y1) and (x2, y2) as follows:
Distance = √((x2 - x1)^2 + (y2 - y1)^2)
Let's calculate the distance between the points (-2, 9) and (0, 0) using the distance formula:
x1 = -2, y1 = 9
x2 = 0, y2 = 0
Distance = √((0 - (-2))^2 + (0 - 9)^2)
= √((2)^2 + (-9)^2)
= √(4 + 81)
= √85
Rounding the result to the nearest tenth, we get:
Distance ≈ 9.2
Therefore, the distance between the points (-2, 9) and (0, 0) is approximately 9.2 units.
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What is the slope of the line with the following points?
Point A (10, 6)
Point B (15, 10)
Answer:
i believe it is 4/5
Step-by-step explanation:
Show your work. 21. The side of a square rug is 6 feet. What area of the floor will the rug cover?
Answer:
36ft²
Step-by-step explanation:
A=a²=6²=36ft²
sorry if im wrong
a local cable company claims that the proportion of people who have internet access is less than 63%. to test this claim, a random sample of 800 people is taken and its determined that 478 people have internet access. the following is the setup for this hypothesis test: h0:p
The p-value for this hypothesis test for a proportion p is 0.039.
What is a random sample?
In statistics, a simple random sample is a subset of individuals chosen from a larger set in which a subset of individuals is chosen randomly, all with the same probability. It is a process of selecting a sample in a random way.
For the null hypothesis,
H0 : p = 0.63
For the alternative hypothesis,
Ha : p < 0.63
This is a left-tailed test
Considering the population proportion, probability of success, p = 0.63
q = probability of failure = 1 - p
q = 1 - 0.63 = 0.37
Considering the sample,
Sample proportion, P = x/n
Where,
x = number of success = 478
n = number of samples = 800
P = 478/800 = 0.6
We would determine the test statistic which is the z score
z = (P - p)/√pq/n
z = (0.6 - 0.63)/√(0.63 × 0.37)/800 = - 1.76
From the normal distribution table, the area below the test z score in the left tail is 0.039
Thus,
p = 0.039
Hence, the p-value for this hypothesis test for a proportion p is 0.039.
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Absolute value what is greater |-4.3| or |-7.2|
Answer:
The absolute value of -7.2 is greater.
Step-by-step explanation:
Absolute value means the distance from zero. Distance is always measured with a positive number. Which number is farther from 0, -7.2 or -4.3? -7.2
You are the payroll manager for a women's apparel company. your workers are paid per garment sewn on a differential piecework scedule as follows
As the payroll manager of a women's apparel company, the workers are compensated based on a differential piecework schedule, which involves payment per garment sewn.
In a differential piecework schedule, workers are paid according to the number of garments they sew. The payment rate per garment may vary depending on certain factors such as the complexity of the garment or the worker's skill level. This differential payment system recognizes that different garments require varying levels of effort and expertise to sew. As the payroll manager, it is your responsibility to implement and manage this payment structure, ensuring that workers receive accurate compensation based on the number of garments they produce. By tracking the number of garments sewn by each worker and applying the appropriate payment rate, you can calculate their earnings and ensure fair and equitable compensation within the company.
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need answer asap please !
Answer:
4
Step-by-step explanation:
3x+4x=7 combine like terms
7x=7 simplify/divide common terms
x=1 solve for x
QR=4x
QR=4
I thought the answer was 8 but oh well... good luck on your questions.
-0.5 (bar over 5) as a fraction simplified
Answer:
5/9
step by step follow up
10. What are the differences between theoretical probability, subjective probobility and experimental probability? Provide an example for each one with reference to rolling a pair of dice. [6]
Theoretical probability is based on mathematical principles, subjective probability is influenced by personal judgments, and experimental probability is derived from actual experiments or observations. Each approach provides different insights into the likelihood of an event.
Theoretical probability is determined by analyzing the possible outcomes and their probabilities based on mathematical principles. When rolling a pair of dice, there are 36 equally likely outcomes, and the probability of getting a sum of 7 is 6/36 or 1/6.
Subjective probability relies on personal judgments and opinions. For example, someone might believe that rolling a sum of 7 is more likely than rolling a sum of 2 because they have a personal bias or experience that leads them to that belief.
Experimental probability is derived from conducting actual experiments or observations. By rolling a pair of dice many times and recording the outcomes, we can estimate the experimental probability.
After rolling the dice 100 times, we observe that a sum of 7 occurs 18 times, leading to an experimental probability of 18/100 or 0.18.
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Answer + method / explanation please
The expressions for the lengths of the segments obtained using vectors notation are;
a. i. \(\overrightarrow{LA}\) = q - (1/2)·p ii. \(\overrightarrow{AN}\) = (2/7)·(p - q)
b. The expressions for \(\overrightarrow{MN}\), \(\overrightarrow{LA}\), and \(\overrightarrow{AN}\) indicates;
\(\overrightarrow{MN}\) = (1/84)·(46·q - 11·p)
What are vectors?A vector is a quantity that has magnitude and direction and are expressed using a letter aving an arrow in the form, \(\vec{v}\)
a. i. \(\overrightarrow{LA}\) = \(\overrightarrow{BA}\) - \(\overrightarrow{LB}\) = \(\overrightarrow{BA}\) - (1/2) × \(\overrightarrow{CB}\)
\(\overrightarrow{BA}\) - (1/2) × \(\overrightarrow{CB}\) = q - (1/2)·p
\(\overrightarrow{LA}\) = q - (1/2)·p
ii. \(\overrightarrow{AC}\) = \(\overrightarrow{BC}\) - \(\overrightarrow{BA}\)
\(\overrightarrow{AN}\) = (2/7) × \(\overrightarrow{AC}\)
\(\overrightarrow{AN}\) = (2/7) × \(\overrightarrow{BC}\) - \(\overrightarrow{BA}\)
\(\overrightarrow{AN}\) = (2/7) × (p - q)
b. \(\overrightarrow{MN}\) = \(\overrightarrow{MA}\) + \(\overrightarrow{AN}\)
\(\overrightarrow{MA}\) = (5/6) × \(\overrightarrow{LA}\)
\(\overrightarrow{LA}\) = q - (1/2)·p
\(\overrightarrow{AN}\) = (2/7) × (p - q)
Therefore;
\(\overrightarrow{MN}\) = (5/6) × ( q - (1/2)·p) + (2/7) × (p - q)
\(\overrightarrow{MN}\) = (1/84) × ( 70·q - 35·p + 24·p - 24·q) = (1/84)(46·q - 11·p)
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can someone help me? before its late
The radius of a dartboard is 9 inches What is the area of the dartboard in square inches?
the area of the dartboard is approximately 254.34 square inches.
The area of a dartboard can be calculated using the formula for the area of a circle, which is given by:
Area = π * \(radius^2\)
Given that the radius of the dartboard is 9 inches, we can substitute this value into the formula:
Area = π * \(9^2\)
Area = π * 81
To calculate the area, we need to use the value of π (pi). Pi is an irrational number and is commonly approximated as 3.14. Using this approximation, we can calculate the area:
Area ≈ 3.14 * 81
Area ≈ 254.34 square inches
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Please help me pls I need help if you do thank you so much
The solution is
a) The total area of the rectangular grass area is 9600 feet²
b) The number of bags required is 9.6 bags
What is the Area of a Rectangle?The area of the rectangle is given by the product of the length of the rectangle and the width of the rectangle
Area of Rectangle = Length x Width
Given data ,
Let the area of the rectangular grass area be = A
Now , the equation will be
The length of the rectangular grass portion = 120 feet
The width of the rectangular grass portion = 80 feet
The area of the rectangular grass portion = Length x Width
Substituting the values in the equation , we get
The area of the rectangular grass portion A = 80 x 120
The area of the rectangular grass portion A = 9600 feet²
Now , each bag of the grass seed covers 1000 feet²
So , the number of bags required for the entire area = area of the rectangular grass portion A / each bag of the grass seed covers 1000 feet²
On simplifying the equation , we get
The number of bags required for the entire area = 9600 / 1000
The number of bags required for the entire area = 9.6 bags
Therefore , the number of bags required is 9.6 bags
Hence , the total area of the rectangular grass area is 9600 feet²
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Find the distance between the two points rounding to the nearest tenth (if necessary).
(2,−4) and (7,8)
Answer:
d = 13
Step-by-step explanation:
First, the distance formula is needed:
\(d = \sqrt{(x_{2} - x_{1} )^{2} +(y_{2} - y_{1 })^{2} }\)
Next we assign the points
(2,-4) is point 1, (7,8) is point 2
\(d = \sqrt{(7 - 2 )^{2} +(8 - (-4))^{2} } \\d = \sqrt{5^{2} +12^{2} } \\d = \sqrt{25 + 144}\\ d = \sqrt{169} \\d = 13\)
Given two points (2,-4) and (7,8)
To find - The distance between given points.
We know the formula that is used to find the distance is given as
\(d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}\)
We let P = (2,-4)
and Q = (7,8)
\(x_1=2, y_1=-4\\x_2=7,y_2=8\)
on substituting we get
\(d=\sqrt{(7-2)^2+(8+4)^2}\\ d=\sqrt{(5)^2+(12)^2} \\d=\sqrt{25+144} \\d=\sqrt{169}\\ d=13\)
Hence we get the distance between (2,-4) and (7,8) is 13.
Final answer - The distance is 13.
NPV Calculate the net present value (NPV) for a 25-year project with an initial investment of $5,000 and a cash inflow of $2,000 per year. Assume that the firm has an opportunity cost of 15%. Comment
The net present value (NPV) for a 25-year project with an initial investment of $5,000 and a cash inflow of $2,000 per year, assuming that the firm has an opportunity cost of 15%, is $9,474.23.
NPV is a method used to determine the present value of cash flows that occur at different times.
The net present value (NPV) calculation considers both the inflows and outflows of cash in each year of the project. The NPV is then calculated by discounting each year's cash flows back to their present value using a discount rate that reflects the firm's cost of capital or opportunity cost.
A 25-year project with an initial investment of $5,000 and a cash inflow of $2,000 per year has a total cash inflow of $50,000 ($2,000 × 25).
Summary: Thus, the net present value (NPV) for a 25-year project with an initial investment of $5,000 and a cash inflow of $2,000 per year, assuming that the firm has an opportunity cost of 15%, is $9,474.23.
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A phone company charges a base fee of $12 per month plus an additional charge per minute. The monthly phone cost C can be represented by this equation: C=12+a⋅m, where a is the additional charge per minute, and m is the number of minutes used.
Which equation can be used to find the number of minutes a customer used if we know a and C?
A
m=C−12a
B
m=(C−12)−a
C
m=C−12a
D
m=Ca−12
Answer:
It’s actually m = (C - 12) /3 But I don’t see it in the 4 option you have.
Step-by-step explanation:
C = 12+ am
C - 12 = am
(C - 12) /a = m
Answer:
beside in this equation where C=$12 a= the additional charges and m= minutes used the equation would be C m=C-12a
if x is the number of heads obtained when an unbiased coin is tossed four independent times, e(x−−√) equals to?
The expected value of x is e(√(x)) = e(√(2)) ≈ 1.6487.
The number of possible outcomes when tossing an unbiased coin four independent times is 2^4 = 16, and the probability of obtaining x heads is given by the binomial distribution:
P(x) = (4 choose x) * (1/2)^4 = (4!/(x!(4-x)!) * 1/16
Thus, the expected value of x is:
E(x) = Σ[xP(x)] from x=0 to x=4
= 0*(1/16) + 1*(4/16) + 2*(6/16) + 3*(4/16) + 4*(1/16)
= 2
So, e(√(x)) = e(√(2)) ≈ 1.6487.
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What is the value of x?
Enter your answer in the box.
Answer:
27
Step-by-step explanation:
These shapes are mathematically similar as line BR and QC are parallel.
To find the scale factor:
First we find the length of BD by adding 26 and 39:
26+39 = 65
So to get from BD to BQ :
We multiply by :
26/65 = 0.4
So to get from RD to CD:
We do
18÷0.4 = 45
Then we subtract 18 from 45 to get x:
45-18 = 27
Therefore the value of x is 27
26.25 rounded to the nearest tenth
Answer: 26.3
Step-by-step explanation:
Find the slope and the y-intercept of the line.
y=-5/4x+5
Answer:
Slope: -5/4
y-intercept: 5
Step-by-step explanation:
y = mx + b
m = slope
b = y-intercept
PLEASE HELP ASAP!!!! ILL MARK BRAINLIEST
A graph of the solution of the inequality is: graph F.
What is an inequality?In Mathematics, an inequality can be defined as a mathematical relation that is typically used for comparing two (2) or more numerical data and variables in an algebraic equation based on any of the following inequality symbols:
Greater than (>).Greater than or equal to (≥).Less than (<).Less than or equal to (≤).Next, we would solve the given inequality by making x the subject of formula as follows;
x - 5 < 14
By adding 5 to both sides of the inequality, we have the following:
x - 5 + 5 < 14 + 5
x < 19
Note: The line on a number line should be open when the inequality symbol is greater than (>) or less than (<).
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help me i been stuck for like a good 20 min
\(4(x+7) \leqslant 4(2x+8)\implies 4x+28\leqslant 8x+32\implies 28\leqslant 4x+32 \\\\\\ -4\leqslant 4x\implies \cfrac{-4}{4}\leqslant x\implies \boxed{-1\leqslant x}\)
notice, in the division by "4" we didn't flip the inequality sign, because the division was by a positive value, we only flip it when the division involves a negative value.
You borrowed ₱15,000.00 from your parents to buy a new video game, and they set an interest rate of 15% per month. How much interest do you owe in one month?
Answer:2250
Step-by-step explanation:
All we need to do is multiply 15,000 by 15% also known as 0.15 as a decimal.
15,000 X 0.15 = 2250
Answer: 2250