Comparing Measures of Center and Variability

It's the middle number in a set of data.

• mean

• median

• mode

• range

It's the number that occurs the most times in a set of data.

• mean

• median

• mode

• range

Which measure of center should you use if there is an outlier in your data?

• mean

• median

What is the median of the following set of data?

• 25

• 23

• 14

• 21

It is a measure of variability that you get when you subtract the smallest number in a set of data from the largest number.

• mean

• median

• mode

• range

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?

• 1

• 2

• 4

• 8