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Chapter 7: Q. 21 (page 428)

Find the probability that the sums will fall between the z-scores –2 and 1.

Short Answer

Expert verified

Probability is a statistical term used to calculate the number of chances in an appropriate problem.

Step by step solution

01

Given information

Explanation:

The sample size of a hundred is randomly drowned from cans of the same soda with the mean39.01and the standard deviation0.5.

The standard deviation is;

∑X=(n)(μX)+(z)(n)(σX)

=100×39.01−2×100×0.5

role="math" localid="1648622152547" =3891

Another step of standard deviation is;

∑X=(n)(μx)+(z)(n)(σx)

=100×39.01+1×100×0.5

=3906

The percentage is81.86%

02

Final answer

Thus the percentage for the given standard deviation is81.86%

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Most popular questions from this chapter

Men have an average weight of 172pounds with a standard deviation of 29pounds.

a. Find the probability that 20randomly selected men will have a sum weight greater than 3600lbs.

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