Standard Deviation and Distribution

This data is normally distributed.  What percent of the data is in the shaded region?

• 68%

• 95%

• 99.7%

• 50%

This data is normally distributed. What percent of the data is in the shaded region?

• 68%

• 95%

• 99.7%

• 50%

The normal distribution curves represents U.S. female heights. What percentage of females are between 5'6.5" and 5'11"?

• 16%

• 68%

• 81.5%

• 95%

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

(from z = -1 to z = 1)

• 13.5%

• 34%

• 95%

• 68%

In a normal distribution, what percent of information falls within one standard deviation of the mean?

• 95

• 68

• 50

• 34

This data is normally distributed.  What percent of the data is in the shaded region?

• 68%

• 32%

• 95%

• 50%

What is the standard deviation on this Normal Curve?

• 6

• 12

• 34

• 18

Question 11

• 1

• 2

• 3

• 4

A set of data with many gaps has a smaller standard deviation than a set of data with a few or no gaps.

• True

• False

In any normal distribution, about what percent of values are within 1 standard deviation of the mean?

• 50%

• 68%

• 95%

• 99.7%