3) Observed number of flood events in A, B and C regions within a 100-year period is given below. Number of floods 1 2 3 4 Region A 52 28 12 1 Region B Region C 14 27 24 18 10 12 35 24 16 8. 4 1 a)...

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Extracted text: 3) Observed number of flood events in A, B and C regions within a 100-year period is given below. Number of floods 1 2 3 4 Region A 52 28 12 1 Region B Region C 14 27 24 18 10 12 35 24 16 8. 4 1 a) For each region, find the probability of occurrence of at least 3 floods in one year. b) For each region, find the probability of occurrence of fewer than 5 floods in one year. c) Find the probability of occurrence of at most 2 flood events in the next 5 years.