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. P(x) 0 0.135 1 0.418 2 0.260 3 0.104 4 0.083 H= 1.582; 0=1.104 X OH= 1.582; 0=1.886 Ou= 1.88; 0=1.104 None of these