The incidence of an occupational disease to the workers of a factory is 15000 . If there are 10000 workers in a factory then the probability that none of them will get the disease is
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a
e
b
e−2
c
e−3
d
e4
answer is B.
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Detailed Solution
λ=np=10000.15000=2 P(X=0)=e−2 the probability that none of them will get the disease = e−2