Let X denote the number of luxury cars sold in a given day at a certain car dealership. X Probability 0 0.07 1 0.11 2 0.1 3 0.12 4 0.11 5 0.49 Find the variance of X.
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b) Find the mean number of cars owned.
c) Find the standard deviation of the number of cars owned.
d) Find σ2
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