1. Data Analysis 18 Practice Questions GHSGT Review

2. 1. There are 12 coins in a box; some are nickels and some are pennies. The probability of randomly reaching into the box and pulling out a nickel is 2/3. What is the probability of pulling out a penny? A. 1/8 B. ¼ C. 1/3 D. 2/3

3. 2. The oldest person in an audience of 100 is 59. If the range of ages is 43, what is the age of the youngest member of the audience? A. 12 B. 16 C. 41 D. 42

4. 3. The weekly salaries of seven employees are $160, $240, $260, $85, $200, $180, and $120. What is the median salary? A. $120 B. $160 C. $180 D. $200

5. 4. Find the probability of spinning a 4 on the spinner. A. 1/8 B. ¼ C. 1/3 D. 1/2 81 7 2 63 54

6. 5. Use the tree diagram to predict the probability of flipping a coin and getting heads and of rolling a number cube and getting an odd number. A. ½ B. ¼ C. 1/3 D. 1/2 Flip then Roll Heads1 = H, 12 = H, 23 = H, 34 = H, 45 = H, 56 = H, 6Tails1 = T, 12 = T, 23 = T, 34 = T, 45 = T, 56 = T, 6

7. 6. The average annual temperature in Atlanta is shown in the chart. Use the chart to determine the range. A. 28 ˚ B. 37 ˚ C. 45 ˚ D. 61 ˚ MonthAverage Annual Temperature January41˚ February45˚ March54˚ April62˚ May69˚ June76˚ July78˚ August78˚ September73˚ October62˚ November53˚ December45˚

8. 7. Christine has a bag of 25 marbles. Five of these marbles are green, four are blue, three are white, eight are black, and five are yellow. If she reaches into the bag, what is the probability that she will randomly pull out a yellow marble? A. 1/8 B. 1/5 C. ¼ D. 1/3

9. 8. Ramon spent a total of $50 for four books. Later he bought another book. He spent an average of $12.25 for each book. What did Ramon pay for the fifth book? A. $10.25 B. $11.25 C. $12.25 D. $13.25

10. 9. Kayla recorded the hours she spent studying each week for five weeks. She listed these hours in the chart. What is the average number of hours Kayla spent studying? A. 10 B. 12 C. 13 D. 15 WeekHours Spent Studying 118 212 315 45 510

11. 10. The miles Michelle ran in a week are 2, 3, 3, 4, 4, 3, and 6. What is the mode number of miles Michelle ran? A. 3 B. 4 C. 5 D. 6

12. 11. Mr. Sassy constructed a diagram to illustrate the number of seniors enrolled in honors courses. How many seniors are enrolled in Honors Math? A. 30 B. 40 C. 61 D. 95 Honors 10Honors English Math 45 30 6 2015 Honors Science 20

13. 12. How many seniors take all three honors classes? A. 6 B. 10 C. 15 D. 20 Honors 10Honors English Math 45 30 6 2015 Honors Science 20

14. 13. Which kind of graph is best used to show the relationship between two variables? A. bar graph B. pictograph C. line graph D. circle graph

15. 14. Kevin is making a pictograph to give to his principal showing the number of students in each grade in favor of starting an environmental club. He summarized his data in the table. In Kevin’s pictograph, how many students could best be represented by this symbol? A. 2 B. 10 C. 25 D. 100 GradeNumber of students in favor of starting an environmental club Freshmen50 Sophomores25 Juniors100 Seniors125

16. 15. According to the bar graph, how many hours per month on average did the 17-year-old work? A. 8 B. 12 C. 20 D. 24

17. 16. Refer to the bar graph. How many more hours did the 18-year-olds work than the 14-year-olds? A. 5 hours B. 19 hours C. 24 hours D. 29 hours

18. 17. The results of a poll asking, “What kind of topping do you like on your pizza?” are shown in the chart. Which type of graph should be used to show the results of the poll? A. bar graph B. circle graph C. line graph D. pictograph ToppingPercent who preferred Pepperoni50% Extra cheese15% Mushrooms5% Olives5% Peppers15% Sausage10%

19. 18. What is the ratio of those who like olives to those who like sausage? A. 1:2 B. 2:1 C. 1:4 D. 4:1 ToppingPercent who preferred Pepperoni50% Extra cheese15% Mushrooms5% Olives5% Peppers15% Sausage10%

20. Solutions 1. C 2. B 3. C 4. A 5. B 6. B 7. B 8. B 9. B 10. A 11. C 12. A 13. C 14. C 15. C 16. B 17. B 18. A