A Standard Normal Random Variable

| June 22, 2015

A standard normal random variable

a standard normal random variable, compute the following probabilities:

1. P(-1.98<= z <=.49)

2. P(.52<=.z <= 1.22)

True or False

3. A + A’ always equals zero.

4.If the variance equals zero, the values of z must add up to zero (ex. 1,-1,2,-2)

5.The normal distribution curve does not have to be symmetric to zero.

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HYPOTHESIS TESTING AND TYPE ERRORS
Mathematics

Category: Mathematics

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