Mean, Median, Mode, Range

Mean, Median, Mode, Range

How to find the RANGE:

• Order the Values from least to greatest

• Highest Value - Lowest Value

EXAMPLE: HOW TO FIND THE RANGE

Multiple Choice

What is the range?

• The sum of the largest and smallest number

• The number in the middle

• The difference between the largest and smallest number

• The number that appears most often

Multiple Choice

What is the range of the following set of numbers:

11,17,17,22,36,43,56,71

• 45

• 54

• 60

• 49

Multiple Choice

Ervin bowled 7 games last weekend. His scores are: 155, 165, 138, 172, 127, 193, 142. What is the range of Ervin's scores?

• 193

• 127

• 60

• 66

MODE

• The mode is the number that is repeated the MOST.

EXAMPLE: HOW TO FIND THE MODE

Multiple Choice

What is the mode?

• The average
• The number that appears most often.
• The largest number - the smallest number
• The number in the middle.

Multiple Choice

Find the mode from these test results: 90, 80, 77, 86, 90, 91, 77, 66, 69, 65, 43, 65, 75, 43, 90.

• 43

• 77

• 65

• 90

MEDIAN

Order values from least to greatest

Find the middle value

*IF two values are in the middle, add them and divide by 2 to find the median!*

EXAMPLE: HOW TO FIND THE MEDIAN

Multiple Choice

What is the median?

• The number in the middle when the numbers are in order from least to greatest.

• The difference between the largest and smallest number.

• The average

• The number that appears most often.

Multiple Choice

When finding the median, what do you do if there are two middle numbers?

• Add them together and divide by 2
• Write them both as the answer
• Give up
• Pick one

Multiple Choice

What is the median of the following numbers

10,25,38,39,39,42,71,78 ?

• 39

• 38

• 42

• 25

Multiple Choice

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

• 3 and 4
• There isn't one
• 3.5
• 3

MEAN

• The MEAN is the AVERAGE. You find the AVERAGE by adding up all the numbers and then divide by the number of numbers. 

EAXMPLE:HOW TO FIND THE MEAN

Multiple Choice

To find the average of a set of numbers, add up all the items and divide by...

• 2.
• The smallest number
• The largest number
• The number of items in the set.

Multiple Choice

What number would you divide by to calculate the mean of 3, 4, 5, and 6?

• 6

• 3

• 5

• 4

Multiple Choice

What is the mean of the following numbers? 10, 39, 71, 39, 76, 38, 25

• 42

• 39

• 42.5

• 35.5

Multiple Choice

Find the mean:
28, 18, 19, 18, 17

• 20
• 18
• 11
• 19

Practice!

Multiple Choice

Find the median of the set of data

3,4,5,6,7,8,8,9

• 8

• 6.5

• 6

• 6.25

Multiple Choice

Find the mean of the set of data

3,4,5,6,7,8,8,9

• 8

• 6.5

• 6

• 6.25

Multiple Choice

Find the mode of the set of data

3,4,5,6,7,8,8,9

• 8

• 6.5

• 6

• 6.25

Multiple Choice

Find the range of the set of data

3,4,5,6,7,8,8,9

• 8

• 6.5

• 6

• 6.25