Question
A brother and a sister appear for an interview against
two vacant posts in an office. The probability of the brother’s selection is 1/5 and that of the sister’s selection is 1/3.What is the probability of only one of them is selectedSolution
Probability of only one of them selected = 1/5×2/3 +4/5×1/3 =2/15 +4/15 =6/15 =2/5
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