GATE CE 2019 Set 1 — Question 33
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Engineering Mathematics → Hydrographs & Groundwater → Binomial Distribution
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Question
The probability that the annual maximum flood discharge will exceed , at least once in next years is found to be . The return period of this flood event (in years, round off to 1 decimal place) is ___________
Correct answer
17.8 to 18
Solution
Risk () is the probability that an event of exceedance probability occurs at least once in successive years.
Given and years:
The return period is the reciprocal of the exceedance probability :
Given and years:
The return period is the reciprocal of the exceedance probability :
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