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 68.27% of data from a frequency distribution is

Options:

A . μ±σ

B . 2μ±2σ

C . 3μ±2σ

D . 4μ±4σ

Answer: Option A
Answer: (a).μ±σ

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