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**beckso22** there are 14 students in a class in it's first session. in the next session, a new student joins and was the first to enter the class and chose a random seat. the 14 other students entered the class one by one and each student took the seat he/she had in the last session if it was empty. If the seat was taken, the student picked an empty seat at random. if there are 15 seats in the class, what is the probability that the last student entering would sit on the same seat he/she had in the previous class? same question again but with 20 seats in the class....