Measures of Center

Find the median:
3, 5, 7, 4, 3, 1

• 3 and 4

• There isn't one

• 3.5

• 3

Find the mean:
3.8, 4.2, 4.0, 4.2, 4.2

• 4.08

• 20.4

• 5.1

• 4.2

Find the mode:
3.8, 4.2, 4.0, 4.2, 4.2

• 4.2

• 3.8

• 4.0

• 8

• 4

• 12

• 32

What is the most appropriate measure of center?

• range

• median

• mean

• IQR

Annabel is comparing the distances that two electric cars can travel after the battery is fully charged. Use the measures of center to make an inference about the data. Use the drop-down menus to complete your answer. ​ (a)   can travel further than ​ (b)   after the battery is fully charged.

• Car B

• Car A

The box plot shows the test scores in Mr. Jordan's class. The appropriate measure of center is the ​ ​ ​ (a)  

• Median

• Mode

• Mean

• Range

• IQR

Find the measures of center.

• 
• 
• 
• 

The tennis team needs to raise money by selling raffle tickets. The box plots show how many tickets were sold over 15 days by 3 students. What is the appropriate measure of center for Daniel?​ (a)  

• Median

• Mean

• Range

• IQR

Which statistical measure is most appropriate for measuring the center of this data?

• mean

• median

Answer explanation

Because this distribution has outliers, the mean will be distorted by the extreme values. Therefore, the median is the more appropriate measure of center.