1. You have scores of 62, 75, and 90 on three of your history exams. What do you need to get on your fourth exam for a mean of 80? A. 97 B. 100 C. 93 D. 80 Hint 2. Which relationship would most likely have a positive correlation? A. the amount of memory in computer, and the number of keys on the keyboard. B. the number of tickets sold for a baseball game, and the number of hotdogs sold at the game. C. the number of miles driven, and the number of gallons of gas in the car. D. the rate at which a train travels, and the time it takes for it to reach its destination. Hint 3. What percent of the data is between 62 and 90 for Exam B? A. 25% B. 100% C. 75% D. 50% Hint 4. The circle graph shows the percent of Ms. Jackson's students who earned an ''A'' for each of the four grading periods during a school year. If Ms. Jackson taught 150 total students, how many students earned an ''A'' during the first quarter? A. 27 B. 60 C. 48 D. 15 Hint 5. Rico took a survey to find out the number of family members in each of his classmates' households. The results of the survey are shown in the graph. How many more students said they have 2 family members in their household than 6? A. 20 B. 15 C. 5 D. 10 Hint 6. Rico took a survey to find out the number of family members in each of his classmates' households. The results of the survey are shown in the graph. How many students responded with an answer of less than 6 family members? A. 80 B. 85 C. 5 D. 90 Hint 7. What is implied when it is said that x and y have no correlation? A. When the value of x increases, the value of y decreases. B. When the value of x increases, the value of y increases. C. When the value of x increases, the value of y does not necessarily increase or decrease. D. When the value of x decreases, the value of y decreases. Hint 8. In a factory, every tenth product out of 200 is quality tested. What kind of sampling is represented? A. Convenience Sampling B. Systematic Sampling C. Random Sampling D. Cluster Sampling Hint 9. Which reflects the convenience sampling method that a language arts teacher might use to identify the most popular book read by the language arts students? A. Ask every third student from the 60 students sitting in a study hall. B. Ask all the students in one geometry class. C. Ask students who are wearing a red shirt. D. Ask the first 10 students who walk into the classroom. Hint 10. Find the range of {120, 42, 62, 44, 20, 42, 112}. A. 44 B. 63 C. 100 D. 42 Hint 11. Find any outliers in the data shown in the stem-and-leaf plot. A. 55 B. 10 C. 40 D. 38 Hint 12. How many test scores are presented in the stem-and-leaf plot? A. 93 B. 13 C. 91 D. 62 Hint 13. The circle graph shows the percent of money earned by different groups at a school. The school earned a total of \$42,785. How much did the football team earn if they represent the 29% sector? A. \$12,407 B. \$145 C. \$2900 D. \$7890 Hint 14. Using the pictograph, how many pounds of fish does the average person in India consume in a year? A. 50 pounds B. 55 pounds C. 10 pounds D. 5 pounds Hint 15. Using the pictograph, how many total medals did Central School earn? A. 13 B. 27 C. 13 D. 27 Hint 16. Using the box-and-whisker plot, what is the median of Exam B? A. 90 B. 75 C. 60 D. 83 Hint