Concept explainers
Tocalculate: The population variance of shoes from the given data.
Answer to Problem 2E
The population variance of the shoes with respect to the number of female student is 202.7658.
Explanation of Solution
Given Information:
Selected female student from their school.
Number of pairs of shoes:
50 | 26 | 26 | 31 | 57 | 19 | 24 | 22 | 23 | 38 |
13 | 50 | 13 | 34 | 23 | 30 | 49 | 13 | 15 | 51 |
Formula Used:
The variance formula is
Calculation:
The data recorded for number of shoes of female student.
50 | 26 | 26 | 31 | 57 | 19 | 24 | 22 | 23 | 38 |
13 | 50 | 13 | 34 | 23 | 30 | 49 | 13 | 15 | 51 |
The average number of pairs of shoes 30.35.
Selected female student is 20.
To find the variance of the pairs of shoes, use variance formula.
Hence, the population variance of the pairs of shoes with respect to the number of female student is202.7658.
Chapter 8 Solutions
The Practice of Statistics for AP - 4th Edition
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