7th Grade Unit 4 Review

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 Median in the Data Set:

7, 8, 3, 4, 8

• 7

• 8

• 4

• 3

The number of miles that Jenna cycled each week for a 7-week period is shown: 
36, 42, 28, 52, 48, 36, 31 
What is the median number of miles Jenna cycled?

• 24
• 36
• 39
• 52

The mode score on the 6th grade math test was 94! Which of these interpretations must be correct?

• 94 was the highest score on the test.
• More students received a 94 than any other score
• No student scored below a 94
• A score of 91 was slightly below average.

Find the Mode in the Data Set:

7, 8, 3, 4, 8

What measure represents the value in the center?

• Mode

• Median

• Mean

What measure represent the average?

• Mode

• Median

• Mean

At Donald's Doughnuts, the number of doughnut holes in a bag can vary. Help Donald find the mode of the number of doughnut holes per bag described in the sample below:

{12, 10, 10, 10, 13, 12, 11, 13, 10}

• 13

• 12

• 11

• 10

What do you do if there are two numbers in "the middle" when you are finding the median?

• Pick your favorite number
• Add the two numbers in the middle & then divide by two.
• They are both the median
• None of the above