Who will be selected?
A man and his wife appear for an interview for two posts. The probability of the man's selection is and that of the wife is . The probability that at least one of them is selected, is?
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1 solution
Selected=S man =m woman=w not selected=nS
P(atleast one selected)=P(mS wNS) +P(mnS wS) +P(mS wS)
P(required)=(1/5)(1-1/7)+(1-1/5)(1/7)+(1/5)(1/7)=11/35