Statistics Review (Streit)

Find the mean for the following data set:

14, 19, 17, 19, 22, 17

• 17

• 18

• 19

• 8

Find the median for the following data set:

14, 19, 17, 19, 22, 17

• 17

• 18

• 19

• 8

Find the mode for the following data set:

14, 19, 17, 19, 22, 17

• 17

• 18

• 19

• 17 and 19

Find the range for the following data set:

14, 19, 17, 19, 22, 17

• 2

• 3

• 8

• 18

Your first three test scores were 82, 87, and 90. What must you score on the next test in order to have an average of 85?

• 81

• 85

• 86

• 90

Ten people try a new cereal and rate it on a scale of 1-20. The ratings are shown below. Which averages best represent the data?

1, 3, 3, 1, 20, 2, 2, 4, 2, 2

• mean and median

• range

• mean and mode

• median and mode

Last week, twelve students spent the following hours studying: 2, 2, 3, 5, 6, 6, 6, 7, 7, 8, 9, 10

What is the median?

• 6

• 8.5

• 10

• 7

Last week, twelve students spent the following hours studying: 2, 2, 3, 5, 6, 6, 6, 7, 7, 8, 9, 10

What is the lower quartile?

• 5

• 6

• 7.5

• 4

Last week, twelve students spent the following hours studying: 2, 2, 3, 5, 6, 6, 6, 7, 7, 8, 9, 10

What is the upper quartile?

• 8

• 6

• 7.5

• 15

Last week, twelve students spent the following hours studying: 2, 2, 3, 5, 6, 6, 6, 7, 7, 8, 9, 10

What is the interquartile range?

• 3.5

• 6

• 8

• 10