REG Topic 6 Test

The circle graph displays the results of 300 votes for favorite color. How many voters chose blue?

• 50

• 20

• 60

• 125

Max collects data from a random sample of 7th graders. Out of the 140 respondents, 28 attend after-school programs. Of the 400 seventh-graders attending Max’s school, how many would be expected to attend after-school programs?

• 80

• 100

• 120

• 140

What is the most appropriate measure of center for the data set?

• A) Mean; There is an outlier.

• B) Median; There is an outlier.

• C) Mean; There is not an outlier.

• D) Median; There is not an outlier.

The line plots show a random sample of the number of fish caught and released by 10 participants during a two-day fishing derby. Use the mean value of each data set to draw a conclusion about the number of fish caught each day. On average, participants caught and released more fish on Day 1 or Day 2?

• Day 1

• Day 2

Select all of the reasons why a bar graph is an appropriate data display for the given data.

• The data is categorical.

• The data is numerical.

• A bar graph highlights the median and range.

• A bar graph shows the exact amount for each category.

• A bar graph highlights the mean.

Select all the most appropriate measures of center and variability for the data set.

• Mean

• Median

• Interquartile range

• Range

• Minimum

Annabel is comparing the distances that two electric cars can travel after the battery is fully charged. Use the measure of center to draw a conclusion about the data. Which car can travel farther on a fully charged battery?

• Car A

• Car B

• 35

• 55.5

• -10.5
• -14.5

• 2x - 5

• 2x + 5

• 2x - 19

• 2x + 19

About 13 out of 20 homes have a personal computer.  On a street with 60 homes, how many would you expect to have a personal computer?

• 7 homes
• 39 homes
• 73 homes 
• 40 homes