SOLUTION: Eg. Of 200 seniors at a certain college, 98 are women, 34 are majoring in Biology, and 20 Biology majors are women. If one student is chosen at random from the senior class, what

Question 1014902: Eg. Of 200 seniors at a certain college, 98 are women, 34 are majoring in Biology, and 20 Biology majors are women. If one student is chosen at random from the senior class, what is the probability that the choice will be either a Biology major or a women).

Answer by robertb(5830) (Show Source): You can put this solution on YOUR website!
The probability of randomly picking a woman or a biology major is symbolized by P(B U W).
By the addition law of probability,
P(B U W) = P(B) + P(W) - P(B and W)
= 34/200 + 98/200 - 20/200 = 112/200 = 14/25
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