According to empirical rule, the standard deviation and mean interval that cover

Question

According to empirical rule, the standard deviation and mean interval that covers approximately 99.75% of data from a frequency distribution is

Options:

A . 4μ±4σ

B . 3μ±3σ

C . μ±3σ

D . 2μ±2σ

Answer: Option C
Answer: (c).μ±3σ

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