On a Sunday night, there are four people on a bus. The bus has five stops left before it ends its route. Suppose each person will get off the bus at one of the stops, and will do so randomly 1a:How many different ways could the people get off the bus?   1b: What is the probability that all four people get off the bus on the first stop?   1c: What is the probability that all four people get off the bus on the first stop?   1d: What is the probability that exactly three of the four people get off the bus on the same sto

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