Question: Approximate the sample variance and standard deviation given the following frequency distribution: Class Frequency 0-15 2 16-31 14 32-47 6 48-63 13 64-79 15

Approximate the sample variance and standard deviation given the following frequency distribution: Class Frequency 0-15 2 16-31 14 32-47 6 48-63 13 64-79 15

Class Frequency 0-15 2 16-31 14 32-47 6 48-63 13 64-79 15

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