SOLUTION: Suppose that the average number of airline crashes in a country is 1.9 per half year.
(a) What is the probability that there will be at least 3 accidents in the next half year?
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Question 927483: Suppose that the average number of airline crashes in a country is 1.9 per half year.
(a) What is the probability that there will be at least 3 accidents in the next half year?
(b) What is the probability that there will be at least 6 accidents in the next year?
(c) What is the probability that there will be at most 5 accidents in the next 1.5 years?
Answer by ewatrrr(24785) (Show Source): You can put this solution on YOUR website!
Previously Posted
average number of airline crashes in a country is 1.9 per half year
POISSON distribution
P( x ≥ 3 in next .5yr) = 1 - poissoncdf(1.9, 2) = 1 -.7037 = .2963
....
P( x ≥ 6 next year) = 1 - poissoncdf(3.8,5) = 1 - .8156 = .1944
.......
5, x = 5.7 (per 1.5yr)
P( x ≤ 5 in next 1.5yr) = poissoncdf(5.7, 5)= .495
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