Find the mean and standard deviation for the random variable
From the probability distribution, find the mean and standard deviation for the random variable x, which represents the number of cars per household in a town of 1000 households.
x P(x)
0 0.125
1 0.428
2 0.256
3 0.108
4 0.083
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By how many kilograms does the mass of the nuclear fuel decrease in one year? (Assume an efficiency of 35 percent for a nuclear power plant.)
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