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April 19, 2014

April 19, 2014

Posted by **Joy** on Wednesday, August 10, 2011 at 12:18am.

a political action group is phoning people urging them to vote. In a district with 416 households, all households have phones. What is the probability that the district manger will find that:

(a) 50 or fewer households in the district will have unlisted numbers?

(a) 345 or more have listed phone numbers?

(c) between 40 and 80 have unlisted numbers?

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