Math Population Inferences

If 200 people were surveyed, approximately how many people like pepperoni and cheese as their topping?

• 100 people

• 150 people

• 50 people

• 75%

There are 200 students in the band. The band director conducted a random survey of 25 of the band members to determine their favorite flavor of cupcake for their next party. The results are shown below. Based on the survey, which of these is the best prediction of the cupcakes wanted by the 200 band members?

• There are 16 students who want strawberry or vanilla.

• There are 16 more students who want vanilla than chocolate.

• There are 48 more students who want strawberry than vanilla.

• There are 128 students who want strawberry or chocolate.

Which data set shows a greater spread?

• Chess Club

• Checkers Club

• They have the same spread.

• You cannot tell from the box plots. 

Which car club has the higher median?

• Cruisers

• Car Hops

What is the difference between the medians for the two data sets? 

• 0 tickets

• 2 tickets

• 4 tickets

• 6 tickets

Find the medians.
Science: _________ Math: __________ 

•  science: 4.5 h; math: 3 h

•  science: 3 h; math: 4.5 h

•  science: 5 h; math: 5 h

•  science: 3.5 h; math: 4 h

Compare the centers and spreads. 

•  Math has a higher median (center) and a wider spread.

•  Math has a higher median (center) and a smaller spread.

• Math has a lower median (center) and a smaller spread.

• Math has a lower median (center) and a wider spread.

The dot plots show the number of miles Nina and Mark walked during a few days in April.

The median number of miles Mark walked is ___________ the median of the number of miles Nina walked.

• greater than

• less than

• equal to

The dot plots show the number of miles Ben and Barbara ran in the month of February.

Which statement is best supported by the information in the dot plots?

• The mode of the number of miles ran by Barbara is greater than the mode number of miles ran by Ben.

• The least number of miles ran by Ben is greater than the least number of miles ran by Barbara

• The range of the number of miles ran by Barbara is greater than the range of he number of the miles ran by Ben

• The distribution of the data is approximately symmetical in both sets of data.

The dot plots show the number of hours two students watched television in the month of June.
Which statement is best supported by the data in the dot plots?

• The median number of hours Leslie watched television is equal to the median number of hours Dixie watched television.

• The mode number of hours Dixie watched television is greater than the mode number of hours Leslie watched television.

• Dixie had a greater range in the number of hours she watched television than Leslie.

• The least number of hours Leslie watched television is equal to the least number of hours Dixie watch television.