Introduction To Statistics And Data Analysis
6th Edition
ISBN: 9781337793612
Author: PECK, Roxy.
Publisher: Cengage Learning,
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Textbook Question
Chapter 3.3, Problem 36E
Use the relative frequency distribution constructed in the previous exercise to answer the following questions.
- a. Construct a cumulative relative frequency plot for the Medford rainfall data.
- b. Use the cumulative relative frequency plot of Part (a) to answer the following questions:
- i. Approximately what proportion of years had annual rainfall less than 15.5 inches?
- ii. Approximately what proportion of years had annual rainfall less than 25 inches?
- iii. Approximately what proportion of years had annual rainfall between 17.5 and 25 inches?
Example 3.19 used annual rainfall data for Albuquerque, New Mexico, to construct a relative frequency distribution and cumulative relative frequency plot. The National Climate Data Center also gave the accompanying annual rainfall (in inches) for Medford, Oregon, from 1950 to 2008.
- a. Construct a relative frequency distribution for the Medford rainfall data.
- b. Use the relative frequency distribution of Part (a) to construct a histogram. Describe the shape of the histogram.
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Chapter 3 Solutions
Introduction To Statistics And Data Analysis
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