Chapter 9 Review

Chapter 9 Review Part 2

Mean, Median, Mode & Range

Multiple Choice

What is another word for AVERAGE?

• Mode

• Median

• Mean

• Not nice

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

Calculate the mean.

2, 9, 10, 6, 8

• 8

• 4

• 7

• 22

Multiple Choice

The number of pages that Mia wrote in her journal each day from Monday to Friday is shown below:

9, 8, 12, 11, 20

What is the mean number of pages she wrote per day?

• 5

• 6

• 9

• 12

Multiple Choice

Calculate the mean.

10, 4, 5, 9

• 7

• 5

• 8

• 4

Median

To find the median, list the numbers in order from least to greatest and find the number in the middle.

If there are two middle numbers, add them together and divide by 2 to calculate 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

In order to find the median, the data must be sorted from least to greatest first.

• True
• False

Multiple Choice

When you are trying to find the MEDIAN of a set of data and 2 numbers are left in the middle after putting them in order from least to greatest, what do you do?

• List both of the numbers as the Median.
• Add the two numbers together and divide by 2.
• Pick the one that you want.
• Subtract the two numbers.

Multiple Choice

What is the MEDIAN of this set of data?

10, 90, 80, 60, 50, 40, 70, 30, 20, 100

• 50

• 60

• 55

• 45

Multiple Choice

The number of miles that Kiki cycled each week for a 7-week period is shown:

36, 42, 28, 52, 48, 36, 31

What is the median number of miles Kiki cycled?

• 24

• 36

• 39

• 52

Multiple Choice

Find the median of these numbers:

76, 82, 57, 93, 64, 72

• 74

• 57

• 72

• 73

Mode

Mode is the number that appears the most.

Multiple Choice

A data set can have more than one mode

• True
• False

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

What is the mode of this data set?

• 10
• 7
• 18
• 9

Multiple Choice

At Donald's Donuts the number of donut holes in a bag can vary. Help Donald find the MODE.

12,10,10,10,13,12,11,13,10

• 10

• 12

• 10 and 12

• No Mode

Multiple Choice

What is the mode of this data set?

0, 4, 9, 12, 6, 2, 1, 8, 7, 11

• 11

• 9

• 1

• None

Multiple Choice

What is the mode in this set of numbers:
7, 14, 20, 3, 7, 14, 2, 14, 7

• 7
• 20
• 7 & 14
• none of the above

Range

To find the range, list the numbers in order from list to greatest, then subtract the highest value from the lowest value.

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

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

• 193

• 127

• 60

• 66

Multiple Choice

93, 100, 82, 93, 67, 100, 67, 82, 93, 93

What is the range of this data set?

• 26

• 93

• 33

• 82

Multiple Choice

What is the range of this data set?

• 20

• 5

• 30

• 26

Multiple Choice

What is the range of this data set?

• 54

• 2

• 11

• 10

Poll

I feel prepared for tomorrow's Quiz!

• Yes! I am ready!

• No... I need more practice