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Chapter 6: Q. 6 (page 285)

State two of the main reasons for studying the normal distribution.

Short Answer

Expert verified

The normal distribution can be expressed with a bell-shaped curve.

The curve is as follows:

Step by step solution

01

Given Information 

What the two of the main reasons for studying the normal distribution.

02

Explanation 

The following are two of the most important reasons to learn the normal distribution.

The result of statistical information relating to practical phenomena can be simply interpreted using the normal distribution.

For example, blood pressure, school grades, and so on.

The normal distribution can be expressed with a bell-shaped curve.

The curve is as follows:

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Most popular questions from this chapter

Elephant Pregnancies. G. Wintemeyer et al. studied demographic data on African elephants living in Kenya in the article "Comparative Demography of an At-risk African Elephant Population (PLOS ONE, Vol. 8. No. 1). Based on this study, we will assume that the time between pregnancies of the African elephant in Kenya, for elephants that have more than one calf, is normally distributed with mean of 4.01 years and a standard deviation of 0.94 years. Determine the percentage of such times that are

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A variable is normally distributed with a mean of 0 and standard deviation 4. Find the percentage of all possible values of the variable.

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a. Construct a relative-frequency histogram of these wrong-number data.

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