1) Count the number of different functions from the set {0, 1} into the set {1, 2, 9} 2) Count the number of different o
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1) Count the number of different functions from the set {0, 1} into the set {1, 2, 9} 2) Count the number of different o
1) Count the number of different functions from the set {0, 1} into the set {1, 2, 9} 2) Count the number of different one-to-one functions from the set {0, 1} into the set {1, 2, 9) 3) One elevator in a building starts with seven passengers and may stop at next nine floors (not including the floor it starts with). Assuming that it is equally likely that a passenger gets off at any of these nine floors, find the probability that at least two of these passengers will get off at the same floor.