Find the marginal distribution of X. What does this distribution tell you?
What will be an ideal response?
The marginal distribution of X is:
P(X = 0 ) = 0.28, P(X = 1 ) = 0.22, P(X = 2 ) = 0.26, P(X ? 3 ) = 0.24
This distribution indicates the likelihood of observing a particular number of customers in the regular checkout line.
Business
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