Analysis of data on maximum one-day rainfall depth at Madras indicated that a depth of 280mm had a return period of 50 years.
a).Determine the probability of a one-day rainfall depth equal to or greater than 280mm at Madras occurring once in 10 successive years
b).two times in 15 successive years
c).at least once in 20 successive years.
d). What is the probability of non-occurrence?