Measures of Center and Variability

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

Tags

CCSS.6.SP.B.5C

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

A data set can have more than one mode

• True

• False

Tags

CCSS.6.SP.B.5C

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.

Tags

CCSS.6.SP.B.4

CCSS.HSS.ID.A.1

Find the Mode in the Data Set:

7, 8, 3, 4, 8

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

• 127

• 155

• 156

• 193

What measure represents the value in the center?

• Mode

• Median

• Mean

Tags

CCSS.6.SP.B.5D

CCSS.HSS.ID.A.2

What measure represent the average?

• Mode

• Median

• Mean

Tags

CCSS.6.SP.B.5D

CCSS.HSS.ID.A.2