1. Refer to the set of data below. If 15 were removed from the set of data, which values would change? A. mean, median, and range B. range and mean C. range D. mode Hint 2. Evaluate 34. A. 64 B. 7 C. 12 D. 81 Hint 3. Solve A. 4 B. 24 C. 3 D. 16 Hint 4. Write 3,465 in scientific notation. A. 0.3465×104 B. 34.65×102 C. 3.465×103 D. 346.5×10 Hint 5. What is the interval? A. 10 B. 9 C. 51-100 D. 50 Hint 6. The following are scores on an English exam. The highest score possible is 100. Where is there a cluster? A. 20-30 B. 20-100 C. 60-75 D. 90-100 Hint 7. The mean is the _______ of a set of numbers. A. highest number B. most frequent C. middle number D. arithmetic average Hint 8. Which interval has the most values? A. 10-19 B. 70-79 C. 60-69 D. 90-99 Hint 9. Which statistic gives the most accurate information for the following set of test scores? 2, 85, 87, 88, 89 A. mode B. median C. mean D. range Hint 10. 67.2 m = ______ cm A. 672 B. 6,720 C. 0.672 D. 67,200 Hint 11. What is the most energy used by any of these states (in hundred trillion BTU's)? A. 28 B. 27 C. 26 D. 29 Hint 12. Find the mode of {2, 2, 3, 9, 7, 9, 3, 7, 3}. A. 7 B. 3 C. 5 D. 2 Hint 13. The median is the __________ of a set of numbers. A. arithmetic average B. most frequent number C. highest number D. middle number Hint 14. In a set of data, if the interquartile range is 8, the upper quartile is at 17, what is the highest number that could be in the data without being an outlier? A. 29 B. 52 C. 30 D. 50 Hint 15. If you have taken five English tests this quarter and received scores of 72, 72, 93, 94, and 95, what misleading statistic could you use to make your grades look better than they are? A. range B. mean C. mode D. median Hint 16. Find the next term in the sequence 81, 27, 9, 3, … A. 9 B. 6 C. 3 D. 1 Hint 17. Evaluate 15. A. 15 B. 5 C. 6 D. 1 Hint 18. The table shows how much time Eva spent in a music chat room on the Internet during the week. Which expression cannot be used to find the total number of hours she spent in the chat room? A. 1.5 + 1.5 + 1.5 + 1 + 1 + 2 B. 5(1.5 + 1) + 2 C. 3(1.5) + 2(1) + 2 D. 3 × 1.5 + 2 × 1 + 2 Hint 19. On average, letter carriers deliver approximately 670 million pieces of mail each day. About how many pieces of mail do they deliver in 6 days? A. 420 billion B. 4.02 million C. 4.02 billion D. 4,020 Hint 20. The graphs below show the number of minutes spent on the phone. Which graph would you use to determine how many calls were between 6 and 20 minutes? A. B. C. D. Hint