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5. TV-hours The following table furnishes the probability distribution of the number X of hours adults spend watching television per day: 0 2 3 4

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5. TV-hours The following table furnishes the probability distribution of the number X of hours adults spend watching television per day: 0 2 3 4 5 6 P: .05 ? 30 .20 .15 .06 .04 The standard deviation of number of hours an adult spends watching television is (a) 1.45 (b) 2.10 (c) 2.54 (d) 3.56 (e) 3.00

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