suppose all the us woman's hight is notmal distribution N( 64, 2.7). a SRS of the size 9 is taken from them. what is the probability of the averave hight of  this sample is less that 63? what is the theorem you are using here?

A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
Section: Chapter Questions
Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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suppose all the us woman's hight is notmal distribution N( 64, 2.7). a SRS of the size 9 is taken from them. what is the probability of the averave hight of  this sample is less that 63? what is the theorem you are using here?

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