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9) (5 marks) The chance that a salmon successfully jumps up the waterfall to upstream is 65%. We have a group of 10 salmon. a)
9) (5 marks) The chance that a salmon successfully jumps up the waterfall to upstream is 65%. We have a group of 10 salmon. a) What is the chance that none of them jump up successfully? b) What is the chance that at least 1 of them reach up-stream? c) Is "at least 1" complement of event "at most 1
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