Sokal and rohlf 1981 studied purebred canadian dairy cattle, Ask an Expert

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Sokal and rohlf 1981 studied purebred Canadian dairy cattle. The butterfat percentages from 2-year-old cows follow a normal distribution with a mean of 4.51 and a standard deviation of 0.348.

a. Find the probability that a 2 year old cow will have a butter fat percentage between 4.25 and 4.60

b. Find the probability that a 2 year old cow will have a butterfat percentage less than 4.75

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