A service station has both self-service and full-service islands. On each island, there is a single regular unleaded pump with t
wo hoses. Let X denote the number of hoses being used on the self-service island at a particular time, and let Y denote the number of hoses on the full-service island in use at that time. The joint pmf of X and Y appears in the accompanying tabulation
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The one-fourth of one round of cheddar cheese
Step-by-step explanation:
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