A gumball dispenser has 38 orange gumballs

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A gumball dispenser has 38 orange gumballs, 30 purple ones, and 18 yellow ones. The dispenser operates such that one penny delivers 1 gumball.
Using three pennies, what is the probability of obtaining 3 gumballs in the order of orange, purple, orange?
Using one penny, what is the probability of obtaining 1 gumball that is either purple or yellow?
Using three pennies, what is the probability that of the 3 gumballs obtained, exactly 1 will be purple and 1 will be yellow?

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