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Residential numbers in new york city

Telephone marketers and opinion polls use random digit dialing equipment to call residential telephone numbers at random. The polling firm Zogby International reports that just 17% of calls reach a live person. Calls are independent.

A telemarketer places 6 calls. What is the probability (±0.0001) that none of them reaches a person?

Only 6% of calls made to residential numbers in New York City reach a person. What is the probability (±0.0001) that none of 6 calls made to New York City reaches a person?

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## Q : Experiment of tossing a fair coin

Repeat 10 times the experiment of tossing a fair coin 4 times and recording the number of heads obtained. You thus obtain a random sample of size 10 from a binomial distribution with 4 trials and p = 1/2. Write down the ten numbers.