Question

what is the chance of x having a value that is either less "mu"-1.96 or greater than "mu"+1.96

Answer 1

From normal distribution table; area under the normal curve to the left of (Z = -1.96) is given by:

Since normal distribution is a symmetrical curve, area under the normal curve to the right of (Z = 1.96) is given by:

Hence, probability or chance of x having a value that is either less "mu"-1.96 or greater than "mu"+1.96 =