Question

Identify the number of standard deviations above and below the mean for each percentage:

Answer 1

68-95-99.7 rule:

68% of the data is within 1 standard deviation of the mean

95% of the data is within 2 standard deviation of the mean

99.7% of the data is within 3 standard deviation of the mean

For the given data, the 68% of the data is μ + or . 1σ

$\mu\pm\sigma$