9.1-9.3 Review

A music store gives comment cards to all members of its Jazz Club to find out about satisfaction with the club's features.

Identify the sample.

• People who play instruments.

• All music store customers except Jazz Club members.

• All music store customers

• Jazz Club members

Tags

CCSS.7.SP.A.1

CCSS.HSS.IC.A.1

80 customers in a clothing store were surveyed about how they paid for their purchases. The table shows the responses. Based on the results, which of the following is true.

• Tomorrow, 8 out of the first 80 customers will pay with a gift card.

• In a group of 50 customers, it is expected that about 10 will pay with cash.

• About 30%, of all the store's customers will pay with a credit card.

• About 50% of customers will pay by check.

Tags

CCSS.6.RP.A.3B

What is the median of this data set?

3 , 17 , 17 , 11 , 8 , 13 , 5 , 18

• 11

• 12

• 13

• 17

Tags

CCSS.6.SP.B.5C

A beverage company wanted to see if people in the United States liked their new logo. Which choice best represents a population?

• A selection of logo artists.

• Every person in the United States.

• A selection of shoppers from different states.

• 3,800 children age 5 - 15

Tags

CCSS.7.SP.A.1

CCSS.HSS.IC.A.1

Find the mean.
90, 100, 95, 85, 60, 80

• 85
• 84
• 86
• 90

Tags

CCSS.6.SP.B.5C

Andre wants to survey a random sample of the student body in his school to find out which day after school would work best for students to do volunteer work for a local charity. Which

sample would best represent the student body?

• asking twenty students waiting in line for lunch

• asking twenty students on their way to the bus after school

• asking one person from the seventh grade daily for twenty days

• asking one person each from twenty different classrooms during the first class period

Tags

CCSS.7.SP.A.1

CCSS.HSS.IC.A.1

_________ is a sample in which each individual or object in the entire population has an equal chance of being selected.

• Sample

• Population

• Random Sample

• Quartile

Tags

CCSS.HSS.IC.B.3

Lee will conduct a survey at his school. He will select a random sample of students at the school to take the survey. Which sample is the best random sample for Lee to use?

• every other student in the drama club

• every fifth student who enters the school

• every student who rides the same bus as Lee

• every fourth student in Lee’s homeroom class

Tags

CCSS.HSS.IC.B.3

What is the median of this data set?
20 , 1 , 7 , 19 , 11 , 19

• 11
• 15
• 19
• 20

Tags

CCSS.6.SP.B.5C

River Bluff High School has a student population of 3020. In a sample of 250 students, 170 of them were female athletes. Approximately how many students in the entire population should be female athletes?

• 170

• 205

• 2,054

• 2,770

Tags

CCSS.7.SP.A.2