Probability and Statistics 2.3 Formative Assessment

The following are test scores a recent AP Statistics Test. The test was out of 16 points. Calculate the mean.

16 16 11.5 9 13 9.5 12.5 16

12.5 14 12.5 13.5 13 13 16 14

• 13.25

• 13

• 16

• 12.75

The following are test scores a recent AP Statistics Test. The test was out of 16 points. Calculate the median.

16 16 11.5 9 13 9.5 12.5 16

12.5 14 12.5 13.5 13 13 16 14

• 13.25

• 16

• 13

• 12.25

The following are test scores a recent AP Statistics Test. The test was out of 16 points. Calculate the mode.

16 16 11.5 9 13 9.5 12.5 16

12.5 14 12.5 13.5 13 13 16 14

• 13.25

• 16

• 13

• No mode

Grades in a math class in college are calculated by using the following weights. Homework is worth 30%, Exam 1 is worth 18%, Exam 2 is worth 18%, and the Final Exam is worth 34%. If you got an 100 on your homework, a 94 on Exam 1, a 87 on Exam 2, and a 85 on the Final Exam, what is your grade for the class?

• 90.5

• 91.5

• 89

• 88.5

The mean scores for students in a statistics class (by grade) are shown below. What is the mean score for the class?

5 Sophomores, average 90

15 Juniors, average 83

10 Seniors, average 85

• 9.864

• 84.833

• 85.283

• 88.401

Calculate the mean of the following frequency distribution.

• 18.944

• 6.558

• 12.547

• 21.119

Calculate the mean of the following frequency distribution.

• 10.571

• 8.571

• 7.571

• 6.571

Describe the data distribution shape of the graph.

• Skewed right
• Skewed left
• Uniform
• Symmetrical

Tags

CCSS.6.SP.A.2

CCSS.6.SP.B.4

CCSS.6.SP.B.5

What does the red arrow represent in the dot plot?

• spread
• mean
• outlier
• median

Tags

CCSS.6.SP.A.2

CCSS.6.SP.A.3

CCSS.6.SP.B.4

CCSS.6.SP.B.5

Describe the histogram:

• Left Skewed
• Symmetrical
• Right Skewed
• Uniform

Tags

CCSS.2.MD.D.9