Question

The number of potato chips in a bag is normally distributed with a mean of 74 and a standard deviation of 4. Approximately what percent of bags contain between 62 and 86 potato chips?

choices below
Approximately 68%
Approximately 74%
Approximately 95%
Approximately 99.7%

Answer 1

99.7%

Explanation:

62 is 3 SD below the mean and 86 is 3 SD above the mean

6 SD covers approx 99.7 %