Let x represent the scores on a mathematics achievement test given t.pdf

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This document discusses a mathematics achievement test given to eighth grade students where the population mean score is 50 and standard deviation is 15. It asks for the probability that the sample mean of a random sample of 100 test scores will be between 51 and 53.

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Let x represent the scores on a mathematics achievement test given to eighth grade students.
Suppose that for the population of all scores on the test, the mean is 50 and standard deviation is
15. If a random sample of 100 values of x is to be obtained, find the probability that the sample
mean will be between 51 and 53.
Solution
The probability is P(51

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