Civil Engineering MCQAE Level Civil Engineering
Probability of a 10 cm rain in 1 hour at station B is 1/60. Probability that such rain or larger will occur once in 30 successive years is
HydrologyHydrologyMEDIUM
Choose the correct answer
A
0.396
B
0.307
C
0.604
D
0.500
Correct Answer
A. 0.396
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P(at least one occurrence) = 1 - (1 - 1/60)^30 ≈ 0.396
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This MCQ belongs to WBPSC AE Previous Years Questions Series. Full tests include timed attempts, rank comparison and subject-wise analysis.