7th Grade Statistics

Find the mean:

90, 100, 95, 85, 60, 80

• 85

• 84

• 86

• 90

Tags

CCSS.6.SP.A.2

CCSS.6.SP.A.3

CCSS.6.SP.B.5

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

Tags

CCSS.6.SP.A.3

CCSS.6.SP.B.5

Carlos wants to know the favorite sport of people at his school so he asks his baseball team. This is an example of a...

• biased sample

• random sample

Tags

CCSS.7.SP.A.1

CCSS.7.SP.A.2

A public library asked every 10th person who entered to name the type of book they were getting. This is an example of a...

• biased sample

• random sample

Tags

CCSS.7.SP.A.1

CCSS.7.SP.A.2

According to a random telephone survey, 85 out of 100 of all working adults in the U.S. are satisfied with their current job. If I asked 500 adults, how many do you predict would be satisfied with their current job?

• 85

• 340

• 500

• 425

Tags

CCSS.7.RP.A.2

CCSS.7.RP.A.3

CCSS.7.SP.A.1

CCSS.7.SP.A.2

According to a random telephone survey of 100 adults, 85% of all working adults in the U.S. are satisfied with their current job. What is the population in this survey?

• 100 adults

• adults in the U.S.

• 85% of adults

Tags

CCSS.7.SP.A.1

CCSS.7.SP.A.2

Zoe completes a report by asking 70 students across campus. She found that 48% of students at her school do not wash their hands after using the bathroom. What is the sample of her survey?

• the bathroom

• students at her school

• 70 students

Tags

CCSS.7.SP.A.1

Billy wants to determine the favorite candy among all 7th graders. So he asks all the girls in his Math class. This is an example of a...

• biased sample

• random sample

Tags

CCSS.7.SP.A.1

CCSS.7.SP.A.2

A survey was conducted to see how many people like to play board games. The statistics from the survey show 5 in every 15 people do like to play board games. If 150 people were surveyed, how many do you predict would say they like to play board games?

• 5

• 10

• 50

• 150

Tags

CCSS.6.RP.A.3B