17. Consider the stem and leaf plot at the right. What is the mean of the numbers represented in the stem-and-leaf plot? 789 A. 22 AWNE 022456 B. 23 C. 26.7 D. 29.3 124 18. A real estate agent sold 6 houses homes in the last month. The prices of the homes are listed: $124 000, $169 000, $134 000, $134 000, $111 000, $150 000. Suppose that he sold a seventh house at the price of $750,000. Which measure of central tendency will change the most when this number is included in the table above? . Mean B. Mode C. Median D. All 3 measures with same amount 19. When added to the following data set, {4, 6, 7, 7, 8} which number will neither change the mode nor change the median? A. 4 B. 5 C. 6 D. 9 20. Consider the following data set: {4, 5, 6, 7, 10}. If you remove one of the numbers from the list, then the mean increases and the median doesn't change. Which number is it? A. 4 C. 6 B. 5 D. 7 21. Given the data set at the right, what is the mean? Hours Slept A. 7.24 C. 7 B. 8 D. 7.18 . .. 22. Given the same data set about hours slept, what is the median? . . . A. 8 C. 6 B. 9 56789 D. 7 Hours 23. Given the data about the % with Bachelor's Degree by state, what is the median? % With Bachelor's Degree by State A. 27 C. 26 Stem Leaf B. 25 D. 26.5 122355677799 24. Given the data about the % with Bachelor's Degree by state, 3 015 what is the mode? 4 9 A. 27 C. 29 B. 5 D. 7 Key: 215 = 25 25. The data at the right is the frequency distribution table of ages of 16 Age at First Job people when they got their first job. Determine the mean age. Age |Frequency A. 16.67 C. 16.94 14 B. 18.33 D. 17 15 2 26. Using the same data set about ages at first job, determine the mode. 16 4 A. 17 C. 16 17 6 B. 18 D. 6 19 1 21 2 27. On a Mathematics test, Bob scored at the 80th percentile. Which statement .. Luv. A. Bob scored 80% on his test. B. Bob answered 80 questions correctly. C. Eighty percent of the students who took the test had the same score as Bob did. D. Eighty percent of the students who took the test had a score equal to or less than Bob's score