Researchers believe that 7% of children have a gene that may be linked to a cert

Question

Researchers believe that 7% of children have a gene that may be linked to a certain childhood disease. In an effort to track 50 of these children, researchers test 950 newborns for the presence of this gene. What is the probability that they find enough subjects for their study? Researchers believe that 7% of children have a gene that may be linked to a certain childhood disease. In an effort to track 50 of these children, researchers test 950 newborns for the presence of this gene. What is the probability that they find enough subjects for their study? Researchers believe that 7% of children have a gene that may be linked to a certain childhood disease. In an effort to track 50 of these children, researchers test 950 newborns for the presence of this gene. What is the probability that they find enough subjects for their study?

Explanation / Answer

in a given population of newborns, if 7% of it is atleast 50 of these children then there are enough subjects for their study.

7% x 950 = 66.5

66.5 > 50, therefore there are enough subjects (if the result is 50, then the probability is 50/50 = 1; if it is <50, then the probability is <50/50 or <1.)

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