0 votes 0 votes 50 % has family 3 children ,30 % of family has 2 children ,20 % of family has 1 children . Find probability P(child belongs to family of 2 children) ? hitendra singh asked Dec 26, 2018 hitendra singh 249 views answer comment Share Follow See all 0 reply Please log in or register to add a comment.
2 votes 2 votes total children = 50*3+30*2+20*1.=230 desired children =30*2 =60 probability P(child belongs to family of 2 children) = 60/230 Satbir answered Dec 26, 2018 Satbir comment Share Follow See all 0 reply Please log in or register to add a comment.