SOLUTION: Of the 538 people who had an annual check-up at a doctor�s office, 215 had high blood pressure. Estimate the probability that the next person who has a check-up will have high bloo

Question 888025: Of the 538 people who had an annual check-up at a doctor�s office, 215 had high blood pressure. Estimate the probability that the next person who has a check-up will have high blood pressure.
Answer by KMST(5328) (Show Source): You can put this solution on YOUR website!
If those first 538 people are representative of all the people that come to that doctor�s office for annual check-ups, then
of the people coming for annual check-ups have high blood pressure.
That is the probability that the next person who has a check-up will have high blood pressure:
= approximately .
You could round that to .
(That may be the expected answer).
Since , you could also say that the next person has a 2 in 5 chance of having high blood pressure.

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