Inferring Statistics

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

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

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

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

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

Which is NOT ture?

• The spreads of the low temperatures for Reybold and Picktown are not the same

• Neither box plot is symmetrical

• The median low temeratures for Reybold and Picktown are different

• The lower extreme for Picktown is approximately 5 degrees lower than the lower extreme for Reybold

What is the approximate difference in the interquartile ranges?

• 20

• 12

• 32

• 40

What is the range?

• average

• biggest-smallest

• the middle #

• happening the most

Find the MAD:
58, 38, 54, 48, 26, 36

• 43

• 20

• 10

• 12

What is the minimum value?

• 64

• 58

• 66

• 61