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mel-nik [20]
3 years ago
5

Which is true from these equations

Mathematics
1 answer:
e-lub [12.9K]3 years ago
4 0

Answer:

B and E

Step-by-step explanation:

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Suppose that shoe sizes of American women have a bell-shaped distribution with a mean of 8.47 and a standard deviation of 1.5. U
alex41 [277]

Answer:

2.5% of American women have shoe sizes that are greater than 11.47.

Step-by-step explanation:

The Empirical Rule states that, for a normally distributed random variable:

68% of the measures are within 1 standard deviation of the mean.

95% of the measures are within 2 standard deviation of the mean.

99.7% of the measures are within 3 standard deviations of the mean.

In this problem, we have that:

Mean = 8.47

Standard deviation = 1.5

The normal distribution is symmetric, which means that half the measures are below the mean, and half are above the mean.

What percentage of American women have shoe sizes that are greater than 11.47?

11.47 = 8.47 + 2*1.5

This means that 11.47 is two standard deviations above the mean.

Of those measures below the mean, none are greater than 11.47.

Of those measures above the mean, 95% are between the mean and 11.47, and 5% are above. So

0.5*0.05 = 0.025

2.5% of American women have shoe sizes that are greater than 11.47.

8 0
3 years ago
Diagonal cross-section of a sphere produces which two dimensional shape
Leni [432]
Every cross-section of a sphere will  be a circle. 

Answer: circle

Any further questions about this? Or how I got my answer?

7 0
3 years ago
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soldi70 [24.7K]

Answer:

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Step-by-step explanation:

math is math ‍

7 0
3 years ago
Read 2 more answers
Owen earns a base salary plus a commission that is a percent of his total sales. His total weekly pay is described by f(x)=0.15x
Travka [436]

Answer:

0.05x

This is equivalent to 5% of the total amount of sales.

Step-by-step explanation:

Previous Weekly pay function for Owen; f (x) = 0.15x +325-------------------- (1)

Current   Weekly pay function for Owen; g(x) = 0.20x +325--------------------(2)

Change in Owen's Salary plan is equation (2) minus equation (1)

g(x) - f(x) = (0.20x+325)-(0.15x+325)

              =  0.05x

The new change in Owen's salary is 5% of the total amount of sales

4 0
3 years ago
Answer the following and SHOW YOUR SOLUTION.
Ivahew [28]

Answer: i need more information

Step-by-step explanation:

5 0
2 years ago
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