10.23 Looking at age and income.
The scatterplot in Figure 10.11 has a distinctive form.
10.23
(a) All ages are reported as integers forming the stacks. (b) Answers will vary. Older men could have more experience; younger men could have more recent education. The data show that there is no relationship between age and income for men (or a very weak one). (c) . For each 1 year a man gets older, his predicted income goes up by $892.11.
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