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NAME DATE 12-4 PERIOD Skills Practice Comparing Sets of Data Find the mean, median, mode, range, and standard deviation of each data set that is obtained after adding the given constant to each value. 1. 98, 95, 97, 89, 88, 95, 90, 81, 87, 95; + 2 2. 57, 38, 42, 51, 39, 44, 33, 55; + (−7) 3. 112, 91, 108, 129, 80, 99, 78, 80; + (−15) 4. 5, 12, 7, 3, 8, 5, 7, 1, 4, 7, 3, 9; + 22 Find the mean, median, mode, range, and standard deviation of each data set that is obtained after multiplying each value by the given constant. 5. 71, 72, 68, 70, 72, 67, 68, 72, 65, 70; × 0.2 6. 14, 17, 13, 9, 15, 7, 12, 16, 8, 9; × 5 7. 32, 30, 27, 29, 25, 33, 38, 26, 23, 31; × 1.6 8. 55, 50, 58, 52, 56, 57, 50, 55, 50; × 2 Florida Marlins Chicago Cubs 64, 51, 67, 80, 92, 54, 64, 79, 76, 79, 91, 83, 83, 78, 71, 84, 87 84, 49, 73, 76, 68, 90, 67, 65, 88, 67, 88, 89, 79, 66, 85, 97, 83 a. Use a graphing calculator to construct a box-and-whisker plot for each set of data. Then describe the shape of each distribution. Lesson 12-4 Copyright © Glencoe/McGraw-Hill, a division of The McGraw-Hill Companies, Inc. 9. BASEBALL The total wins per season for the first 17 seasons for the Florida Marlins are shown. The total wins over the same time period for the Chicago Cubs are also shown. b. Compare the data sets using either the means and standard deviations or the five-number summaries. Justify your choice. Chapter 12 25 Glencoe Algebra 1