AP Stats

In this graph, the mean is _____ the median

• less than

• equal to

• greater than

• better than

Describe the shape of the density curve.

• skewed left

• skewed right

• symmetric

• bimodal

The distribution of heights of young women aged 18 to 24 is approximately N(64.5, 2.5).

What value is 2 standard deviations above the mean?

• 67

• 69.5

• 62

• 59.5

The distribution of heights of young women aged 18 to 24 is approximately N(64.5, 2.5).

What value is 1 standard deviation below the mean?

• 67

• 69.5

• 62

• 59.5

The distribution of heights of young women aged 18 to 24 is approximately N(64.5, 2.5).

What percent of young women have heights greater than 67 inches?

• 68%

• 32%

• 16%

• 5%

The distribution of heights of young women aged 18 to 24 is approximately N(64.5, 2.5).

What percent of young women have heights between 62 and 72 inches?

• 16%

• 68%

• 0.15%

• 83.85%

Identify the sampling method:

Every fifth person boarding a plane is searched thoroughly.

• SRS

• Stratified

• Cluster

• Systematic

• Voluntary Response

Identify the sampling method:

At a local community College, five math classes are randomly selected out of 20 and all of the students from each class are interviewed.

• SRS

• Stratified

• Cluster

• Systematic

• Convenience

Identify the sampling method:

A community college student interviews the first 100 students to enter the building to determine the percentage of students that own a car.

• SRS

• Stratified

• Cluster

• Convenience

• Voluntary Response

Identify the sampling method: The names of 70 contestants are written on 70 cards, The cards are placed in a bag, and three names are picked from the bag.

• SRS

• Systematic

• Stratified

• Cluster

• Convenience