Household size According to the Census Bureau, the number
Chapter 8, Problem 8.4(choose chapter or problem)
Household size According to the Census Bureau, the number of people X in a randomly selected U.S. household follows the probability distribution given in the table below. Number of people xi : 1 2 3 4 5 6 7 Probability pi : 0.25 0.32 0.17 0.15 0.07 0.03 0.01 (a) Sketch a histogram that displays the probability distribution of X. (b) Calculate and interpret P(X . 2). (c) Find the expected value of X and explain what it tells you.
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