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In a city 10 accident take place in a span of 50 days. Assuming that the number of accidents follow the Poisson distribution, the probability that three or more accident occure in a day , is

A

` sum_(k=3)^(infty)(e^(-lambda)lambda^(k))/(k!), lambda=0.2`

B

` sum_(k=3)^(infty)(e^(lambda)lambda^(k))/(k), lambda=0.2`

C

` sum_(k=0)^(3) (e^(-lambda)lambda ^(k))/(k!), lambda =0.2`

D

`sum_(k=0)^(3) (e^(-lambda)lambda ^(k))/(k!), lambda =0.02`

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A
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