To calculate the probability that the man selected has brown hair or brown eyes, we can use the formula:
P(A or B) = P(A) + P(B) - P(A and B)
Where:
- P(A) is the probability of having brown hair (0.4)
- P(B) is the probability of having brown eyes (0.25)
- P(A and B) is the probability of having both brown hair and brown eyes (0.15)
So, the probability of the man selected having brown hair or brown eyes is:
P(brown hair or brown eyes) = 0.4 + 0.25 - 0.15 = 0.5
Therefore, the probability is 0.5.
In a certain town, 40% of the men have brown hair, 25% have brown eyes, and 15% have both brown hair and brown eyes. A man is selected at random from the town. Calculate the probability that he has brown hair or brown eyes.
0.4
0.65
0.5
0.1
1 answer