When you have completed this lesson, you should be able to perform the following task:

Identify and define the six characteristics of the normal curve and apply the

normal curve to decision making situations.

You will be given several questions and problems dealing with the normal

curve. You may use Lesson 3, The Normal Curve, which explains the topic.

Your explanations and solutions will be in accordance with the instructions

in this subcourse.

FRAME 44.

The distribution which occurs most frequently in nature is called the NORMAL DISTRIBUTION.

It occurs so often and in such diverse situations that mathematicians have carefully documented

and quantified its characteristics. Examples of situations which are closely approximated by the

normal distribution include: human characteristics, such as height, weight, and IQ; the outputs of

many physical processes, such as the actual amount of paint put into a 'gallon' can; and the

results of human activity, such as consumer demand or a product.