159. The number of traffic accidents per week at intersection Q has a Poisson distribution with mean 3. The number of traffic accidents per week at intersection R has a Poisson distribution with mean 1.5.
Let A be the probability that the number of accidents at intersection Q exceeds its mean.
Let B be the corresponding probability for intersection R.
Calculate B – A.
(A) 0.00
(B) 0.09
(C) 0.13
(D) 0.19
(E) 0.31
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統計: 尚無統計資料
統計: 尚無統計資料