Question
A university has to select an examiner from a list of 50
persons. Out of these 50 persons, 20 are women and 30 are men. 10 persons know hindi and 40 do not, 15 of them are teachers and 35 are not. What is the probability that the university selects hindi knowing women teacher?Solution
Probability of selecting a teacher= P(T)= 15/50=3/10.
Probability of selecting a women= P(W)=20/50=2/5.
Probability of selecting a Hindi knowing candidate = P(H)= 10/50=1/5.
Req. probability=P(T)P(W)P(H)=(3/10)(2/5)(1/5)= 3/125.
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