2nd Semester: Units 5, 6, and 7 Review

Gustavo wants to find out the most popular football team at a game between the home team and the visiting team. Which of the following methods will give him the most accurate results?

• A. Surveying the cheerleaders for the home team

• B. Surveying people wearing hats for the visiting team

• C. Surveying a group of people standing in line for tickets

• D. Surveying people who do not live in the home team’s city

The table shows the results of a survey of 200 people attending a hockey game. The attendance for the hockey game is about 25,000 visitors each game. Based on the table, how many people out of 25,000 could be expected to buy a pennant?

• 1375

• 1650

• 2750

• 3850

A movie theater kept attendance on Fridays and Saturdays. The results are shown in the box plots. Which conclusion can be drawn from the box plots?

• A. The attendance on Friday and the attendance on Saturday have the same median and interquartile range.

• B. The attendance on Friday has a greater median and a greater interquartile range than attendance on Saturday.

• C. The attendance on Friday has a greater median than attendance on Saturday, but both data sets have the same interquartile range

Consider the following data displays. Which of the following is not the same for both sets of data?

• mean

• median

• mode

• range

The box-and-whisker plots show the distribution of weight among dogs in two different pet stores. Which store has the greater measure of center?

• Pet Store 1

• Pet Store 2

The variability of a data set A is 8 and the variability of data set B is 36. What valid inference can be made from this statement?

• The variability of Data Set B is more than 4 times the variability of Data Set B

• The variability of Data Set A is 28 more than Data Set B

• The variability of Data Set A is one-fourth the variability of Data Set B

• no inference can be made from this data

On the first day of class, Shanjana skimmed 17 random pages from each of the books assigned in her literature class. Each assigned book has an equal number of pages. Is this sample of the assigned reading likely to be biased or unbiased?

• biased

• unbiased

A sample should be ____________ of the general population.

• 20%

• some

• fairly representative

• biased

The double dot plot shows the cost of backpacks at two different stores. Which store typically sells the most expensive backpacks?

• Store 1

• Store 2

The box-and-whisker plots below show the numbers of motor vehicles produced in four different regions for selected years since 1950.

According to the box-and-whisker plots, which of these geographical regions could have a mean annual vehicle production that is greater than their median annual vehicle production?

• United States

• Europe

• Japan

• Canada