Review for Topic 6 Test

Which statement best represents this box plot?

• Group A has a higher median than Group B

• Group B has a lower minimum than Group A

• Group B has greater variability than Group A

• Group A has a larger IQR than Group B

Gilli wanted to know the favorite snacks of students in her school. How could she generate a representative sample of students to survey? (Select ALL answers)

• Gilli can ask every 5th person in every homeroom in the school

• Gilli can ask every 10th person who walks into school

• Gilli can ask her math class

• Gilli can ask everyone she talks to during her classes

• Gilli can ask every other person who walks into the cafeteria

Which company has the fastest mean average speed?

• CityNet

• Able Cable

• Tel-N-Net

What is the Range of this data?

• 70

• 80

• 10

• 60

What is the IQR of the data?

• 30

• 10

• 70

• 40

Which would be the best to summarize this data? (Think that the data is words here and not numbers)

• Mean

• Median

• Mode

• Range

Find the mean of the data

• 2.6

• 3.6

• 3.375

• 2.75

What is the Median of the data set?

• 1.5

• 1

• 2

• 0

Lucy collects data from a random sample of seventh-graders. Out of 40 respondents, 7 attend after-school programs. Of the 200 seventh-graders attending Lucy’s school, how many would be expected to attend afterschool programs?

• 14 seventh-grades

• 35 seventh-grades

• 28 seventh-grades

• 42 seventh-grades

Tricia surveys students in her computer class about time spent on computers by students in her school. Is this a representative sample?

• Yes she asked computer students which would make sense if she wanted to know about the whole school

• No students in computer class would use computers more than others and this does not represent the entire school

• I have no idea