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Mathematics, 19.11.2019 00:31 tay9122

One hundred people board a 100-seat airplane. the first one has lost his boarding pass, so he sits in a random seat. each subsequent passenger sits in his or her own seat if it’s available or takes a random unoccupied seat if it’s not. what’s the probability that the 100th passenger finds her seat occupied?
a. 0.2
b. 1
c. 0.034
d. 0.5
e. 0.1

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