Question: A back-to-back stem-and-leaf plot compares two data sets by using the same stems for each data set. Leaves for the first data set are on

A back-to-back stem-and-leaf plot compares two data sets by using the same stems for each data set. Leaves for the first data set are on one side while leaves for the second data set are on the other side. The back-to-back stem-and-leaf plot at the left shows the salaries (in thousands of dollars) of all lawyers at two small law firms.
(a) What are the lowest and highest salaries at Law Firm A? At Law Firm B?
(b) How many lawyers are in each firm?
(c) Compare the of salaries at each law firm. What do you notice?

Key: 5 | 19 | 0 = $195,000 for Law Firm A and $190,000 for Law Firm B

Law Firm ALaw Firm B 5 0 9 03 8 5 2 2 2 105 7 99 7 0 0 11 0 0 5 1 112 03 3 5 13 2 2 59 14 1 3 3 3 9 15 5 5 56 16 49 9 99 5 1 0 17 1 2 5 5 5 5 21 18 9 99 8 7 5 19 0 3 20

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