Rahul visits a local grocery store. The probability he buys milk is 0.7, bread is 0.5, and both is 0.4. If it is known he bought milk, the probability he also bought bread is:
Rahul visits a local grocery store. The probability he buys milk is 0.7, bread is 0.5, and both is 0.4. If it is known he bought milk, the probability he also bought bread is:
- A. 4/7
- B. 5/7
- C. 1/2
- D. 2/5
Answer: A) 4/7
Explanation: P(Bread | Milk) = P(Bread ∩ Milk) / P(Milk) = 0.4 / 0.7 = 4/7.
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