Ch 12 Review

Mark all the answers that are statistical questions.

• How many people think Taylor Swift is the best singer?

• How many boxes of candy did each student sell?

• How many girls are in your class?

• How many cars were sold each day this month?

What is the attribute?

• measuring tape

• inches

• Heights of 6th Graders

• 21

What is the Unit of Measure?

• feet

• inches

• 21

• measuring tape

What is the Likely Means of Measurement?

• measuring tape

• heights of 6th graders

• inches

• 21

The dot plot shows how many games of Roblox 12 different kids played in a week. If Jackson starts to play, how many games of Roblox is he likely to play in one week?

• 3

• 4

• 5

• 6

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

Tags

CCSS.6.NS.B.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

• 39

• 36

• 52

Tags

CCSS.7.EE.B.3

Dr. Dre is a dentist. He needs to report on the average (Mean) number of cavities that his patients have.

1, 0, 1, 5, 0, 3, 4. What is the average number of cavities?

• 14

• 2

• 7

• 1

Tags

CCSS.7.EE.B.3

The prices at several different stores for a pair of shoes are shown below.

$78, $79, $81, $82, $83

Two days later, another store has the same shoes on sale for $65. How does the new price affect the data?

• The mean is not affected

• The mean stays the same

• The mean increased

• The mean decreased

Given the following data set

6, 9, 12, 14, 7, 9, 6, 8, 25, 12, 14

What is the mean of the data set without the outlier?

• 9.2

• 9.7

• 11.1

• 12.4