Measures of Center and Range

Use the table to find the mean

• 105

• 111

• 118

• 130

Find the Median of the data set

• 77

• 99

• 80

• 78.5

Find the Missing Value that would make the mean of the data set 25

• 22

• 23

• 24

• 26

Which class has the higher test score median? 

• Class #1

• Class # 2 

• The medians are equal

• The median is not shown here. 

The frequency table shows the gas mileages of several vehicles. The data would be ​ (a)   so the best measure of center would be the ​ (b)   and the best measure of variation would be the ​ (c)   ​ ​

• Skewed Right

• median

• Interquartile Range

• Skewed Left

• Symmetrical

• Mean

• Mean Absolute Deviation

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

• Mode

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

• Median

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

• Mean

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

• Range

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

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

• Median

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

• Mode

• 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

• Range

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

What is the mode?

• Number that occurs the most

• The Average

• The difference between the highest and lowest values

• The Number in the middle

Ms. Rork's class had a range of test grades from 78 to 97. She forgot to add in a student who got an 80% on the test. How will this affect the range?

• Increase

• Decrease

• Stay the Same

What is the range?

• average

• biggest-smallest

• the middle #

• happening the most