Statistics Homework Solutions
#2108
Find the mean and standard deviation of X:
The random variable X is the number of houses per month sold by a realtor. The probability distribution is given below. Find the mean and standard deviation of X:
X (houses sold) / f(x)
____________________________________________
(0 , 0.24)
(1 , 0.01)
(2 , 0.12)
(3 , 0.16)
(4 , 0.01)
(5 , 0.14)
(6 , 0.11)
(7 , 0.21)
This will show you how to calculate means and standard deviations.
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