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Answer: 33%
The correct answer is D (33%). **Explanation:** This is a conditional probability problem. We need to find P(High Cholesterol | High Blood Pressure). Given: - P(High Cholesterol) = 25% = 0.25 - P(High Blood Pressure) = 30% = 0.30 - P(Both) = 10% = 0.10 Using the conditional probability formula: P(A|B) = P(A ∩ B) / P(B) Where: - A = High Cholesterol - B = High Blood Pressure P(High Cholesterol | High Blood Pressure) = P(Both) / P(High Blood Pressure) = 0.10 / 0.30 = 1/3 ≈ 0.3333 or 33.33% Therefore, if a randomly selected person has high blood pressure, there is a 33% probability they also have high cholesterol.
Author: Nikitesh Somanthe
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A patient is considered high risk for a heart attack if they either have high cholesterol or high blood pressure. In a given population, 25% have high cholesterol, 30% have high blood pressure and 10% have both high cholesterol and high blood pressure. If a randomly selected person has high blood pressure, what is the probability they also have high cholesterol?
A
15%
B
20%
C
25%
D
33%