Suppose that n points x1, . . . , xn are to be placed in
Chapter , Problem 21(choose chapter or problem)
Suppose that the relation of family income to consumption is linear. Of those families in the 90 th percentile of income, what proportion would you expect to be at or above the 90 th percentile of consumption: (a) exactly 50%, (b) less than 50%, (c) more than 50% ? Justify your answers.
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