Interpret Measures of Center Variability

Is there an outlier in the following set of data?

8, 45, 45, 47, 48, 48, 49, 50

• yes

• no

What is the MEAN of the data set below?

• 14

• 18

• 31

• 90

What is the median of the data set?

• 18

• 20

• 22

• 51

What is the mode of the data set?

• 12

• 14

• 12 and 14

• no mode

How does the outlier in the data set below effect the mean?

• it increases the mean

• it decreases the mean

• it has no effect on the mean

• there is no outlier

What is the range of the data below?

100, 42, 120, 42, 30

• 90

• 78

• 58

• 26

What is the range of the data below?

• 1

• 2

• 4

• 8

What is the mean of the data below?

• 17

• 18

• 20

• 17.5

What is upper extreme of the data below?

• 18

• 19

• 19.5

• 20

What is an outlier?

• A value that repeats more than the other values

• The middle value when the numbers are in order least to greatest

• A value that is much less or much greater than the rest of the data

• The difference between the greatest value and the least value in a data set