Normal Distribution Curve and Graph

How the normal distribution curve relates to standard deviation

The normal distribution curve, also known as the bell shaped curve,

Example Graph of the Normal Distribution Curve

Consider, for example, two sets of test scores. Class A's scores and class B's scores on a test on statistics. Below is a table showing both of the sets of scores

Problems: Normal Distribution and Standard Deviation

Problem 1

1) In the normal distribution, the mean height of 11 year old children is 140 centimeters and the standard deviation is 5 centimeters. How tall are the children that are one standard deviation above the mean?

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