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AveGali [126]
3 years ago
6

The problem involves empirical probability. The table shows the breakdown of 95 thousand single parents on active duty in the U.

S. military in a certain year. All numbers are in thousands and rounded to the nearest thousand. Use the data in the table to find the probability that a randomly selected single parent in the U.S. military is in the army.

Mathematics
1 answer:
Goryan [66]3 years ago
6 0
Since it doesnt matter if parent is male or female, there are total of 38 000 single parents in the army

There are total of 95 000 single perents serving in military that means that probability that randomly selected single perent is in the army is:
38000/95000 = 38/95 = 0.4

If you want that in percentage just multiply it with 100%
in that case answer is 0.4*100 = 40%
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<h3>How to determine the standard deviation of the sample mean differences?</h3>

The table of values is given as:

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The standard deviation of the sample mean differences is calculated using:

\sigma = \sqrt{\sigma_1^2 + \sigma_2^2}

This gives

\sigma = \sqrt{3.868^2 + 2.933^2}

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Also, the table of value do not give any information regarding the sample size.

This means that the sample size of the session regarding the number of people would purchase the red box and the blue box are unknown

Hence, the standard deviation of the sample mean differences is 4.854

Read more about standard deviation at:

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Step-by-step explanation:

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