The probability that a call received by a certain switchboard will be a wrong number is 0.01.Use the Poisson approximation to the binomial distribution to find the probability that among 120 calls received by the switchboard,there are no wrong numbers.
A)0.6988
B)0.3012
C)0.3614
D)0.6386
E)0.3313

Question

Quizplus · Accepted Answer

The Answer of The probability that a call received by a certain switchboard will be a wrong number is 0.01.Use the Poisson approximation to the binomial distribution to find the probability that among 120 calls received by the switchboard,there are no wrong numbers.
A)0.6988
B)0.3012
C)0.3614
D)0.6386
E)0.3313

The Probability That a Call Received by a Certain Switchboard