In a study of a Large group of individuals who uscd pofindividuals who used Cell phanes regularly, it was houndhat some devebped Brain Concer witha probability of 0-00034. In arandom)ysclected groupof 420,095 cell phme users, numberof people who devebped Braim Cancer is: Brid the probability that the a) a) At Least 138 people

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