Unit 9 Test Review

500 cars were registered in one week. Which statement supports the circle graph?

• 250 were registered in California

• More cars were registered in New York

• 105 more cars were registered in California than Texas

• 10 more cars were registered in Florida than Texas.

800 Students were surveyed. How many more students favor hamsters than fish?

• 16

• 80

• 10

• 14

Students at Center Jr. High were surveyed and asked about their favorite school after work snack. The bar graph shows the results of the survey.

Based on the graph, which statement is true?

• Twice as many students chose ice cream as chose fruit for their favorite snack.

• Twice as many students chose chips/ dips as chose ice cream for their favorite snack.

• The same number of students chose chips/ dips as chose cheese & crackers as their favorite snack.

• Fifteen more students chose ice cream as chose cheese & crackers as their favorite snack.

Kim had a bag with colored marbles in it. The number of marbles in the bag is shown in the bar graph.

Which statement is NOT supported by the information in the graph?

• The bag contains more red and white marbles than blue and green.

• The ratio of red to blue marbles is 2:1.

• The ratio of blue to green marbles is 3:2.

• The ratio of red to green is 6.1.

Based on the graph, what percent of the books checked out was adventure or science fiction?

• 50%

• 62.5%

• 75%

• 80%

The mode is

• The middle score
•  Scores added & divided by the number of scores
• The most frequent score
• The middle when in order

The mean is...

• the middle

• the average number (added together, then divided by the number of dots)

• The most frequent number

• The middle when in order

What is the shape of the dot plot shown?

• skewed left

• skewed right

• symmetrical

What is the median of the data?

• 2

• 1

• 3

• 12

What shape is the dot plot for SUV's?

• skewed right

• skewed left

• symmetrical

• none of the above