In a normal distribution what percent of values fall within one standard deviation of the mean?

19.1%

15%

30%

68.2%

Question

Mathematics

Ali Moyer

3 September, 02:31

In a normal distribution what percent of values fall within one standard deviation of the mean?

19.1%

15%

30%

68.2%

+2

Answers (1)

Know the Answer?

Eugene Tucker · Answer 1

Roughly 68% of the distribution is between z = - 1 and z = + 1, ie within 1 standard deviation of the mean. This is from the 68-95-99.7 rule or better known as the Empirical Rule.

The final answer is choice D) 68.2%

In a normal distribution what percent of values fall within one standard deviation of the mean?19.1%15%30%68.2%

In a normal distribution what percent of values fall within one standard deviation of the mean?

19.1%

15%

30%

68.2%