In a study of 494,530 cell phone users, it was found that 147 developed cancer of...

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In a study of 494,530 cell phone users, it was found that 147 developed cancer of the brain or nervous system. Assuming that cell phones have no effect, there is a 0.000326 probability of a person developing cancer of the brain or nervous system. We therefore expect about 162 cases of such cancer in a group of 494,530 people. Estimate the probability of 147 or fewer cases of such cancer in a group of 494,530 people. What do these results suggest about media reports that cell phones cause cancer of the brain or nervous system? (a) P(x147) = (Round to four decimal places as needed.) In a study of 494,530 cell phone users, it was found that 147 developed cancer of the brain or nervous system. Assuming that cell phones have no effect, there is a 0.000326 probability of a person developing cancer of the brain or nervous system. We therefore expect about 162 cases of such cancer in a group of 494,530 people. Estimate the probability of 147 or fewer cases of such cancer in a group of 494,530 people. What do these results suggest about media reports that cell phones cause cancer of the brain or nervous system? (a) P(x147) = (Round to four decimal places as needed.)