Math Statistics

Find the mean:

90, 100, 95, 85, 60, 80

• 85

• 84

• 86

• 90

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

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

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

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

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

What is the mean of the following set of data?

2, 6, 10, 31, 14, 8

• 11.8

• 71

• 12

• 14.2

What is the lower quartile(Q1) for 1st Period and 2nd Period?

• 60, 70

• 75, 80

• 80, 85

• 90, 92

What is the median of the following data set?

25, 42, 36, 12, 19

• 36

• 25

• 39

• 26.5

Fifty percent of the test scores in 2nd Period were below what score?

• 82

• 75

• 85

• 93