In clinical study, volunteers are tested for a gene that has been found to increase the risk for a disease. the probability that a person carries the gene is 0.1.
a) what is the probability four or more people will have to be tested before two with the gene are detected?
b) how many people are expected to be tested before two with gene are detected?

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b. 153 students do not participate in sports and seventy-five 12th graders were surveyed

answer: rolling a number cube and flipping a coin.

step-by-step explanation:

the second option

step-by-step explanation: