Question

1500 families were with 2 children were selected randomly with the following data were recorded, Number of girls 2,1,0 and Number of families 475,514,211 Complete the probability of the family, choose the random, having (I) 2 girls (2)1 girl (3) no girl

Answer 1

1-2/475 2-1/514 3-0/211 you see that 2 number of girls in first category and families 475 thats why we have taken 2/475 and same in other cases also