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# Solved: Normal Distributions. Answer the given questions

ISBN: 9780321836960 18

## Solution for problem 12BSC Chapter 2.2

Elementary Statistics | 12th Edition

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Elementary Statistics | 12th Edition

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Problem 12BSC

Normal Distributions. Answer the given questions which are related to normal distributions.

Identifying the Distribution Does the frequency distribution given in Exercise appear to have a normal distribution? Explain.

Exercise

identify the class width, class midpoints, and class boundaries for the given frequency distribution. The frequency distributions are based on real data from Appendix B.

Step-by-Step Solution:
Step 1 of 3

Problem 12BSC

Step1 of 3:

We have,

 CI frequency 50-59 4 60-69 10 70-79 25 80-89 43 90-99 26 100-109 8 110-119 3 120-129 2

Step2 of 3:

We need to check the frequency distribution given in Exercise appear to have a normal distribution? Explain.

Step3 of 3:

A frequency histogram is obtained by using Excel and steps are as follows

Enter the given data in Excel sheet

select...

Step 2 of 3

Step 3 of 3

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