Choose the best average and see how outliers affect it

Question 1

Weekly pocket money (in dollars) in a group: 23, 24, 32, 298, 24, 21, 24. Which average best describes a typical amount?

• A. Mean
• B. Median

Question 2

Data: 26, 23, 19, 23, 115. By how much does the mean go down when the outlier 115 is removed? Round to 1 decimal place if needed.

Answer 

Question 3

Data: 13, 17, 20, 14, 19, 1. If the outlier 1 is removed, what happens to the mean?

• A. It increases
• B. It decreases
• C. It stays the same

Question 4

Weekly pocket money (in dollars) in a group: 23, 29, 252, 24, 31, 24, 34. Which average best describes a typical amount?

• A. Mean
• B. Median

Question 5

Data: 19, 17, 15, 19, 109. By how much does the mean go down when the outlier 109 is removed? Round to 1 decimal place if needed.

Answer 

Question 6

Data: 14, 18, 15, 13, 16, 78. If the outlier 78 is removed, what happens to the mean?

• A. It increases
• B. It decreases
• C. It stays the same

Question 7

Weekly pocket money (in dollars) in a group: 354, 23, 21, 32, 25, 26, 21. Which average best describes a typical amount?

• A. Mean
• B. Median

Question 8

Data: 14, 28, 13, 12, 116. By how much does the mean go down when the outlier 116 is removed? Round to 1 decimal place if needed.

Answer 

Question 9

Data: 13, 16, 15, 18, 19, 97. If the outlier 97 is removed, what happens to the mean?

• A. It increases
• B. It decreases
• C. It stays the same

Question 10

Weekly pocket money (in dollars) in a group: 27, 21, 29, 23, 31, 20, 390. Which average best describes a typical amount?

• A. Mean
• B. Median

Question 11

Data: 19, 17, 17, 22, 118. By how much does the mean go down when the outlier 118 is removed? Round to 1 decimal place if needed.

Answer 

Question 12

Data: 17, 16, 10, 17, 17, 94. If the outlier 94 is removed, what happens to the mean?

• A. It increases
• B. It decreases
• C. It stays the same

Question 13

Weekly pocket money (in dollars) in a group: 293, 31, 21, 29, 28, 20, 26. Which average best describes a typical amount?

• A. Mean
• B. Median

Question 14

Data: 24, 25, 29, 19, 97. By how much does the mean go down when the outlier 97 is removed? Round to 1 decimal place if needed.

Answer 

Question 15

Data: 18, 14, 19, 10, 16, 99. If the outlier 99 is removed, what happens to the mean?

• A. It increases
• B. It decreases
• C. It stays the same

Question 16

Weekly pocket money (in dollars) in a group: 21, 27, 22, 357, 21, 20, 31. Which average best describes a typical amount?

• A. Mean
• B. Median