Question: Approximate the population variance and standard deviation given the following frequency distribution: Class Frequency 0-19 18 20-39 11 40-59 6 60-79 6 80-99 10 100-119

Approximate the population variance and standard deviation given the following frequency distribution: Class Frequency 0-19 18 20-39 11 40-59 6 60-79 6 80-99 10

Class Frequency 0-19 18 20-39 11 40-59 6 60-79 6 80-99 10 100-119 5

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