Question: Probability (continuous distribution functions)?
suppose the diameter at breast height(in) of trees of a certain type is normally distributed with a=8.8, b=2.8.
a)what is the probability that the diameter of a randomly selected tree will be at least in 10 in? will exceed in 10 ? Edit
Answer: a)Need to find P(x>=10)=?
if x=10 , then z= (10-8.8)/2.8=1.2/2.8=0.43
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