Measure of Center

What is the mean?

• The value that occurs the most often in a data set

• The middle number in an ordered set of data

• The sum of all the numbers in a data set divided by the size

• The sum of the between the greatest and the least elements, divided by two

The number of pages that Carolyn wrote in her journal each day from Monday to Friday is shown below: 
9, 8, 12, 6, 10
What is the mean number of pages she wrote per day?

• 5

• 6

• 9

• 11

Find the Mode in the Data Set:

7, 8, 3, 4, 8

Roger bowled 7 games last weekend. His scores are: 155, 165, 138, 172, 127, 193, 142. What is Roger's median score?

• 127

• 155

• 156

• 193

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

Read the definition and match each word to the correct box.

• Mode

• Measure of center that occurs most often in a data set.

• Median

• Measure of variation that represents the spread of a set of data.

• Range

• Measure of center that represents the fair share of a set of data.

• Mean

• Measure of center that lies in the middle of a set of data arranged in order

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

Read the definition and match each word to the correct box.

• Mean

• Measure of center that occurs most often in a data set.

• Median

• Measure of center that lies in the middle of a set of data arranged in order

• Range

• Measure of variation that represents the spread of a set of data.

• Mode

• Measure of center that represents the fair share of a set of data.

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

The table lists five counties with the largest area in Texas. Which measure of center/variation best represents the average size of these counties?

• mean

• IQR

• mode

• range