Normal Distribution and Empirical Rule Quiz

According to the 68-95-99.7 rule, what percentage of data falls within one standard deviation of the mean in a normal distribution?

• 50%

• 68%

• 75%

• 90%

Tags

CCSS.HSS.ID.A.4

What is the average value of a dataset called?

• median

• mean

• mode

• range

Tags

CCSS.HSS.ID.A.2

CCSS.HSS.ID.A.4

CCSS.HSS.MD.A.2

In a normal distribution, what percentage of data falls within two standard deviations of the mean according to the 68-95-99.7 rule?

• 50%

• 95%

• 99.7%

• 68%

Tags

CCSS.HSS.ID.A.4

What is the shape of a normal distribution?

• circular

• bell-shaped

• triangular

• rectangular

Tags

CCSS.HSS.ID.A.2

CCSS.HSS.ID.A.3

CCSS.HSS.ID.A.4

What is the symbol used to represent the mean in statistics?

• μ

• x

• σ

• n

In a normal distribution, what percentage of data falls within three standard deviations of the mean according to the 68-95-99.7 rule?

• 68%

• 95%

• 50%

• 99.7%

Tags

CCSS.HSS.ID.A.4

What is the symbol used to represent the standard deviation in statistics?

• μ

• x

• σ

• n