Question

Asked Feb 26, 2019

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Part a, b, and c

Step 1

**Normal distribution:**

A continuous random variable *X* is said to follow normal distribution with mean (m) and standard deviation (σ) if the probability density function of *X* is,

Step 2

**Standard normal distribution:**

The standard normal distribution is a special case of normal distribution. The standard normal distribution will have mean 0 and standard deviation 1. If a random variable *X *follows normal distribution with mean (m) and standard deviation (σ), then the standard normal variable *z *will be as given below:

Step 3

**An important property of the normal distribution:**

The normal distribution is symmetric. Thus, for any pai...

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