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The mean daily production of a herd of cows is assumed to be normally distributed with...

The mean daily production of a herd of cows is assumed to be normally distributed with a mean of 30 liters, and standard deviation of 3.1 liters.

(a) What is the probability that daily production is less than 33.7 liters?

(b) What is the probability that daily production is more than 24.5 liters?

Math   Statistics-And-Probability   
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