1. Suppose the probability of boy being born is the same as the probability of girl being born. Determine the probability that a family with four children will have the given composition.
The two oldest children are girls.
2. A customer from Cavallaro's Fruit Stand picks sample of 3 oranges at the random from crate containing 75 oranges, of which 4 are rotten. Determine the probability that the sample contains 1 or more rotten oranges? (Round your answer to three decimal places.)