Question: The following parameters were computed for a stream near Dallas, Texas, for 1940 - 1959 inclusive. The data were transformed to log10Q = y

The following parameters were computed for a stream near Dallas, Texas, for 1940 - 1959 inclusive. The data were transformed to log10Q = y
= 3.52 (mean)
Sy= 0.50 (standard deviation)
Cs = 0.50 (Weighted skewness)
Find the magnitude of the 25-yr flood, assuming that the annual peak flow follows
(a) Log Pearson 3 distribution and
(b) Lognormal distribution.

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