(Answered) A the mean yearly rainfall in sydney australia is about 137

Economics

a.) The mean yearly rainfall in Sydney, Australia is about 137 mm and the standard deviation is about 69 mm. Assume rainfall is normally distributed.

b.) Find the probability that the yearly rainfall is less than 100 mm.

c.) Find the probability that the yearly rainfall is more than 240 mm.

d.) Find the probability that the yearly rainfall is between 140 and 250 mm.

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