Question

Suppose the diameter at breast height in.) of trees of acertain type is normally distributed with mean 88 and sigma - 2.8. as suggested in the article "Simulating allarvester Forwarder Softwood Thinning" (Forest Products May 1997 36-41)

a. What is the probability that the diameter of a randomly selected tree will be at Wille least 10 in Will exceed 10 in.? h. What is the probability that the diameter of a randomly selected tree will exceed

in.? c. What is the probability that the diameter of a randomly selected tree will be

between

5 and 10 in?

20

d. What value c is such that the interval includes 98% of all diameter values? e. If four trees are independently selected, what is the probability that at least one has a diameter exceeding to in?​

Answer 1

Answer:

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Step-by-step explanation:

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