Measures of Center

Which measure of center can be described as the average?

• Mean

• Median

• Mode

• Range

Which measure of center can be described as the middle?

• Mean

• Median

• Mode

• Range

Which measure of center can be described as the most common?

• Mean

• Median

• Mode

• Range

Calculate the mean for the following data set:

1, 2, 2, 2, 5, 5, 8, 10, 12, 13

• 2

• 6

• 5

• 5.5

Calculate the median for the following data set:

1, 2, 2, 2, 5, 5, 8, 10, 12, 13

• 2

• 6

• 5

• 5.5

Calculate the mode for the following data set:

1, 2, 2, 2, 5, 5, 8, 10, 12, 13

• 2

• 6

• 5

• 5.5

Suppose you've taken 2 quizzes and earned a 90 and 84 on the quizzes. You need to take one more quiz, and you'd like to have an average score of 85. What is the lowest possible score you can get on the third quiz to average 85?

• 85

• 78

• 58

• 81

Using the frequency distribution on the left, what is the mean score of the data set?

• 16.52

• 16

• 15

• 15.48

Using the frequency distribution on the left, what is the median score of the data set?

• 16.52

• 16

• 15

• 15.48

Using the frequency distribution on the left, what is the mode score of the data set?

• 16.52

• 16

• 15

• 15.48