In a study of 460,112 cell phone users, it was found that 104 developed cancer of the brain or nervous system. Assuming that cell phones have no effect, there is a 0.000271 probability of a person developing cancer of the brain or nervous system. We therefore expect about 125 cases of such cancer in a group of 460,112 people. Estimate the probability of 104 or fewer cases of such cancer in a group of 460,112 people. What do these results suggest about media reports that cell phones cause cancer of the brain or nervous system? (a) P(x≤104)= ?? (Round to four decimal places as needed.) (b) What does the result from part (a) suggest about the media reports?

Question

In a study of 460,112 cell phone users, it was found that 104 developed cancer of the brain or nervous system. Assuming that cell phones have no effect, there is a 0.000271 probability of a person developing cancer of the brain or nervous system. We therefore expect about 125 cases of such cancer in a group of 460,112 people.

Estimate the probability of 104 or fewer cases of such cancer in a group of 460,112 people. What do these results suggest about media reports that cell phones cause cancer of the brain or nervous system?

(a) P(x≤104)= ?? (Round to four decimal places as needed.)

(b) What does the result from part (a) suggest about the media reports?

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