Find probability that among calls recieved by switchboard

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Reference no: EM13143920

The probability that a call received by a certain switchboard will be wrong number is 1 per 100 calls. Use poisson approximation to the binomial distribution to find the probability that among 120 calls recieved by the switchboard.

1. There are no wrong #'s
2. Exactly 1 wrong #
3. Exactly 2 wrong #'s
4. Exactly 3 wrong #'s
5. At most 3 wrong #'s

Reference no: EM13143920

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