Changes in Mean Median and Mode

What is the mode of the following data set?

18, 14, 10, 11, 21, 14, 12, 15

• 10

• 12

• 14

• There is no mode.

What could be added to the data set to make it bimodal?

18, 14, 10, 11, 21, 14, 12, 15

• a 9

• a 13

• a 14

• a 15

What is the median of the following data set?

44, 45, 48, 55, 59, 60, 61, 67, 72

• 59

• 61

• 67

• 72

What would happen to the median if the 72 was removed?

44, 45, 48, 55, 59, 60, 61, 67, 72

• It will increase by 1.

• It will increase by 2.

• It will decrease by 2.

• It will decrease by 4.

What is the median of the following data set?

91, 84, 85, 79, 99, 81, 95, 99

• 89

• 88

• 85

• 84

What will happen to the median if the 79 is replaced with a 100?

91, 84, 85, 79, 99, 81, 95, 99

• It will increase by 1.

• It will increase by 2.

• It will increase by 3.

• It will increase by 5.

What is the mean of the data set?

143, 122, 139, 158, 168

• 138

• 142

• 146

• 150

How would the mean change if the 168 was changed to188?

143, 122, 139, 158, 168

• It would stay the same.

• It would increase by 1.

• It would increase by 4

• It would increase by 6.

What is the average of the following data set?

22, 26, 29, 32, 37, 40

• 28

• 31

• 33

• 34

How will the mean change if the 26 is removed from the data set?

22, 26, 29, 32, 37, 40

• It will increase by 1.

• It will increase by 2.

• It will increase by 3.

• It will increase by 4.