In a study of 252,009 cell phone users, it was found that 53 developed cancer of the brain or nervous system. Assuming that cell phones have no effect, there is a 0.000227 probability of a person developing cancer of the brain or nervous system. We therefore expect about 58 cases of such cancer in a group of 252,009 people. Estimate the probability of 53 or fewer cases of such cancer in a group of 252,009 people. What do these results suggest about media reports that cell phones cause cancer of the brain or nervous system? (a) P(x≤53) = (Round to four decimal places as needed.)
In a study of 252,009 cell phone users, it was found that 53 developed cancer of the brain or nervous system. Assuming that cell phones have no effect, there is a 0.000227 probability of a person developing cancer of the brain or nervous system. We therefore expect about 58 cases of such cancer in a group of 252,009 people. Estimate the probability of 53 or fewer cases of such cancer in a group of 252,009 people. What do these results suggest about media reports that cell phones cause cancer of the brain or nervous system? (a) P(x≤53) = (Round to four decimal places as needed.)
Chapter8: Sequences, Series,and Probability
Section8.7: Probability
Problem 4ECP: Show that the probability of drawing a club at random from a standard deck of 52 playing cards is...
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![In a study of 252,009 cell phone users, it was found that 53 developed cancer of the brain or nervous system. Assuming
that cell phones have no effect, there is a 0.000227 probability of a person developing cancer of the brain or nervous
system. We therefore expect about 58 cases of such cancer in a group of 252,009 people. Estimate the probability of
53 or fewer cases of such cancer in a group of 252,009 people. What do these results suggest about media reports that
cell phones cause cancer of the brain or nervous system?
(a) P(x≤53) = (Round to four decimal places as needed.)](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F7978c688-363c-421a-8d4c-0aed84d7c61c%2F7fa866b2-afb9-424e-b630-deca25b0cf99%2Fhaavzh5_processed.jpeg&w=3840&q=75)
Transcribed Image Text:In a study of 252,009 cell phone users, it was found that 53 developed cancer of the brain or nervous system. Assuming
that cell phones have no effect, there is a 0.000227 probability of a person developing cancer of the brain or nervous
system. We therefore expect about 58 cases of such cancer in a group of 252,009 people. Estimate the probability of
53 or fewer cases of such cancer in a group of 252,009 people. What do these results suggest about media reports that
cell phones cause cancer of the brain or nervous system?
(a) P(x≤53) = (Round to four decimal places as needed.)
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