Bring out the salient features of normal distribution. What is the need for a standard normal distribution?

The salient features of a normal distribution include:

1. Bell-shaped curve: The normal distribution is a symmetrical, bell-shaped curve, with the majority of the data points falling near the mean or average value.

2. Mean and standard deviation: The distribution is characterized by its mean (or average) and standard deviation, which describe the central tendency and _____ _______ ______ ___ ____ _______ ___ __________ ___.
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