In Sean's school there are 176 families which have 4 children. The circle graph shows the

probability of each combination of girls and boys in a family with four children. Use the circle graph to predict the probability that one of these 176 families, chosen at random, will have at least one child of each sex.

a.50% c.87.5%

b.62.5% d.37.5%

Families with 4 Children 3 boys, 1 girl - 1/4 4 girls - 1/16 4 boys - 1/16 3 girls, 1 boy - 1/4 2 girls, 2 boys - 3/8