Mean, Median, Mode, Outliers

What is the median of the following set of data?

• 25

• 23

• 14

• 21

What is the mode of the following set of data?

• 23

• 21

• 14

• 25

It's the middle number 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

Which measure of center should you use if there are no outliers?

• mean

• median

Is there an outlier in the following set of data?

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

• yes

• no

Which measure of center should you use for the following data distribution?

• mean

• median

Find the Mean of the following numbers:
84, 88, 72, 74, 98, 16, 94 
(Round to the nearest tenth.)

• 75.1

• 84.5

• 16.0

• There is no Mean.

Find the median, first quartile, third quartile, and interquartile range of the data.

• Median: 189

  First Quartile: 182

  Third Quartile: 203

  IQR: 21

• Median: 189.5

  First Quartile: 182

  Third Quartile: 203

  IQR: 21

• Median: 189

  First Quartile: 182

  Third Quartile: 203.5

  IQR: 21.5

• Median: 189.5

  First Quartile: 182

  Third Quartile: 203.5

  IQR: 21.5

Use the interquartile range to identify any outliers in the following data.

52, 63, 55, 56, 62, 54, 59, 60, 53, 61, 88

• No outliers.

• 88 is an outlier.