In hydrology, the annual precipitation height in a basin corresponds to Normal and Log-Normal distributions with an average of 55 standard deviations of 10. Make the following calculations with both distributions to the table below. Normal Distribution Solution Log-Normal Distribution Solution a) What are the probability of annual precipitation heights between 42 and 48 cm in the future? b) What is the probability that annual precipitation heights are at least 34 cm? c) What is the probability of annual rainfall heights to exceed 70 cm?

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In hydrology, the annual precipitation height in a basin corresponds to Normal and Log-Normal distributions with an average of 55 standard deviations of 10. Make the following calculations with both distributions to the table below.

Normal Distribution Solution

Log-Normal Distribution Solution

a) What are the probability of annual precipitation heights between 42 and 48 cm in the future?

b) What is the probability that annual precipitation heights are at least 34 cm?

c) What is the probability of annual rainfall heights to exceed 70 cm?

Equation: ? = ??? –(1/2) ?^2

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