Question

Find the probability of having at least a boy in a family with 3 children

Answer 1

the probability is 1/3

Answer 2

Answer:

Step-by-step explanation:

exp: family of 3 children

sample space (s)={BBB,BBG,BGB,BGG,GBB,GBG,GGB,GGG}

                      n(s)=8

event A= atleast one boy

          A={BBB,BBG,BGB,BGG,GBB,GBG,GGB}

         n(A)=7

        p(A)= n(A)/n(S)

        p(A)=8/7