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Answer:
Given p = 0.07 as the probability that someone is a universal donor
In case of Geometric Distribution, Probability of getting the first success on nth trial is given by
where p is the probability of success on any one trial and (1-p) shows the probability of failure.
So the probability of the first subject to be a universal blood donor will be the seventh person is
So the final probability is 0.0453
If you need to simplify the equation it would be:
+2r-2n+7
If not sorry..
Hope This Helps!
If not sorry..
Hope This Helps!