• The heights of students are approximately normally distributed with a mean of 175 cm and a standard deviation of 7 cm. Suppose a random sample of size 25 are drawn from this population. Determine the probability that that the sample mean 1. fall between 172 and 178 cm; 2. falling below 179 cm.

A First Course in Probability (10th Edition)
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ISBN:9780134753119
Author:Sheldon Ross
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Chapter1: Combinatorial Analysis
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• The heights of students are approximately normally
distributed with a mean of 175 cm and a standard
deviation of 7 cm. Suppose a random sample of
size 25 are drawn from this population. Determine
the probability that that the sample mean
1. fall between 172 and 178 cm;
2. falling below 179 cm.
Transcribed Image Text:• The heights of students are approximately normally distributed with a mean of 175 cm and a standard deviation of 7 cm. Suppose a random sample of size 25 are drawn from this population. Determine the probability that that the sample mean 1. fall between 172 and 178 cm; 2. falling below 179 cm.
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