Topic Test Answers

A survey of the 5769 vehicles on the campus of State University yielded the following circle graph. Find the number of sedans. Round your result to the nearest whole number.

What are some limitations in using a line of best fit drawn on a scatter plot to make predictions?

Determine whether the graph shows a positive correlation, a negative correlation, or no correlation. If there is a positive or negative correlation, describe its meaning in the situation. Women in the Army Year Source: Time Magazine, March 24, 2003

Forty people were randomly sampled and surveyed as to the number of pets in their household. The results are listed below.1104101235202031200104003100210040135021

Because the graph below is misleading, which magazine appears to have about four times the circulation of Circuitry Today?

The ideal weight (in stones) of people of varying heights is given in the table below. Draw a scatter plot for the data. Height (feet/inches) 5 ft 0” 5 ft 1” 5 ft 2” 5 ft 3” 5 ft 4” 5 ft 5” Weight (stones) 9.1 9.5 9.8 10 10.4 10.8 a. c. b. d. Please select the best answer from the choices provided

Draw a box-and-whisker plot for the set of data. 27, 35, 44, 51, 52, 54, 56, 69, 69, 79, 80, 100, 100 a. b. c. d. Please select the best answer from the choices provided

A student takes ten exams during a semester and receives the following grades: 90, 85, 97, 76, 89, 58, 82, 102, 70, and 67. Find the five-number summary used in a boxplot.

The scatter plot shows the study time and test scores for the students in Mrs. Johnson’s English Literature class. Which table most accurately organizes the data from the scatter plot? Table A Study Time (min) 10 30 45 60 60 75 90 91 114 120 Test Scores 65 76 74 78 85 68 95 92 75 98 Table B Study Time (min) 10 20 30 40 50 60 70 80 90 100 Test Scores 65 76 74 78 85 68 95 92 75 98 Table C Study Time (min) 65 76 74 78 85 68 95 92 75 98 Test Scores 10 20 30 40 50 60 70 80 90 100 Table D Study Time (min) 65 76 74 78 85 68 95 92 75 98 Test Scores 10 30 45 60 60 75 90 91 114 120

Eighty percent of all dentists surveyed agree: Zilch toothpaste tastes best. Do you think this information is misleading? Why or why not?

Make a circle graph for each set of data. Highest Federal Salaries (in thousands of dollars) President $400.0 Vice President $192.6 Speaker of the House $192.6 Chief Justice $192.6 Associate justices $184.4 Source: Scholastic Kid’s Almanac a. c. b. d. Please select the best answer from the choices provided

The following scatter plot shows the billions of dollars spent by travelers in the United States since 1993. Which table most accurately organizes the data from the graph? Table A Years from 1993 0 1 1.5 2 3 4 5 Amount ($ billions) 320 340 350 360 380 400 420 Table B Years from 1993 0 1 1.5 2 3 4 5 6 Amount ($ billions) 320 340 350 360 380 400 420 440 Table C Years from 1993 320 340 350 360 380 400 420 440 Amount ($ billions) 0 1 1.5 2 3 4 5 6 Table D Years from 1993 320 340 350 360 380 400 420 Amount ($ billions) 0 1 2 3 4 5 6

The following scatter plot depicts the number of chicken pox cases after 1988. The variable x represents the number of years after 1988. The variable y represents the number of cases in thousands. Does there appear to be a linear relationship? Explain your answer.

The table below gives a record of variations of the values of y with the values of x. Draw a scatter plot for the data. x 0.4 1.2 2.0 3.1 4.5 5.7 7.1 8.4 9.3 9.8 y 7.8 7.1 6.8 6.0 5.2 4.3 3.4 2.3 1.1 0.5 a. c. b. d. Please select the best answer from the choices provided

The following chart presents the number of new and abandoned hazardous waste sites found in various regions in the United States by the 1990s. Based on this data, in which four regions would you advise someone to live? Which would be the safest for someone to live?