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 ava shows the salaries (in thousands) of all lawyers at two small law firms. Complete parts (a) and W Click the icon to view the back-to-back stem-and-leaf plot i below (a) What are the lowest and highest salaries at Law Firm A? at Law Firm B? How many lawyers are in each firm? At Law Firm A the lowest salary was Sand the highest salary was $ At Law Firm B the lowest salary was S and the highest salary was S Back-to-Back Stem-and-Leaf Plot Key: 5| 19 |0 = $195,000 for Law Firm A and $190,000 for Law Firm B Law Firm A Law Firm B 519 14 84222 10 4 7 99611 11 114 11 12 0225 13 2259 14 14449 15 5556 16 4 88

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Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.