Chapter 7: The Normal Probability Distribution

1. 7.1 Properties of the Normal Distribution
2. 7.2 Applications of the Normal Distribution
3. 7.3 Assessing Normality

In Chapter 7, we bring together much of the ideas in the previous two on probability. We expand the earlier bell-shaped distribution (we introduced this shape back in Section 2.2) to its more formal name of a normal curve.

Many random variables have histograms that follow the normal curve, like an individuals height, the thickness of tree bark, IQs, or the amount of light emitted by a light bulb. This is helpful, because we can use it to answer all kinds of interesting questions.

• What proportion of individuals are geniuses?
• Is a systolic blood pressure of 110 unusual?
• What percentage of a particular brand of light bulb emits between 300 and 400 lumens?
• What is the 90th percentile for the weights of 1-year-old boys?

If you're ready to begin, just click on the "start" link below, or one of the section links on the left.

:: start ::

1 2 3 4 5 6 7 8 9 10 11 12 13

This work is licensed under a Creative Commons License.