Median, Mean, Mode, Range

Measures that describe a data set by identifying the

middlemost value by a single number, usually using a mean, median or mode, are called

• Measures of Central Tendency

• Measures of Spread

• Measures of Medians

• Measures of Averages

How is the range calculated?

• Subtract Q1 from Q3?

• Add the minimum and maximum values

• Divide the minimum and maximum values

• Subtract the minimum value from the maximum value.

What is the mode of the following data set?

5, 7, 7, 8, 12 , 12, 5, 6, 13, 12

• 5

• 7

• 12

• no mode

What is the mode of the data?

• 74

• 82

• 80

• 83

What is the range in a set of data?

• average

• biggest minus smallest

• the middle number

• the number happening the most

What is the mode?

• happening the most

• the average

• biggest - smallest

• the middle #

Find the median, mode and range: 
3, 5, 7, 9, 11, 8, 3

• median:7  mode:3  range:8

• median:6  mode:3  range:7

• median:7  mode:3 range:7

What is the median of this data set?

• 11

• 12

• 13

• 17

What is the median of this data set?
5, -2, 4, 2, -3, 0

• -1

• 0

• 1

• 2

Calculate the mean of Shelly's test scores if she has scored 75, 97, and 92 so far this semester.

• 92

• 88

• 132

• 123