8. 9. 10. 11. 12. 13. What is the approximate center (median) tip percent for Jill? 14. What is the approximate center (median) tip percent for Jack? 15. What is the approximate spread (range) tip percent for Jill? Questions 13 through 15: The following stem-and-leaf plot is for the average August temperatures (Fahrenheit) in 20 US cities. The "stem" (row label) gives the first digit of a temperature (e.g., a stem of 6 is 60 degrees), while the "leaf" gives the second digit (e.g., a leaf of 8 is 8 degrees). [Note that the stems appear twice (first stem has leaves of 0, 1, 2, 3, and 4; second stem has leaves of 5, 6, 7, 8, and 9).] Use whole numbers only; No decimals. What is the approximate spread (range) tip percent for Jack? 6 6 7 7 8 1223 8 5 9 9 Do either of the two dot plots show (visually) outliers? a. yes b. no 44 89 01124 56667 6 What is the lowest value for average August temperature? What is the highest value for average August temperature? What percent of the 20 cities had an average August temperature in the 70s?

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