Question

What percentage of the data lies less than one standard deviation below the mean?

Select one or more:
a.16%
b.2.5%
c.49.85%
d.34%
e.95%

Answer 1

Approximately 68% of the data lies less than one standard deviation below the mean.

Step-by-step explanation:

For data that is bell-shaped and symmetric, approximately 68 percent of the data lies within one standard deviation of the mean. This is known as the Empirical Rule. So to answer the question, approximately 68% of the data lies less than one standard deviation below the mean.