To estimate the magnitude of a flood with a return period of T years, – McqOptions

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1.	To estimate the magnitude of a flood with a return period of T years, Gumbel‚Äö√Ñ√¥s distribution method requires the following data pertaining to annual flood seriesi) mean valueii) standard deviationiii) length of recordiv) coefficient of skewThe correct answer is$?
A.	(i) and (ii)
B.	(i),(ii) and (iii)
C.	(i), (ii) and (iv)
D.	(i), (ii), (iii) and (iv)
Answer» C. (i), (ii) and (iv)

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