How to Write out the sample space for a family with five children?

What is the probability that a family with five children will have a) Exactly three boys? b) At least three boys?

What are the odds against a family with five children having all boys?

A deck of Zener cards has 25 cards: 5 each of circle, cross, wavy lines, square, star. I mix three decks of Zener cards: one blue, one red, one green. a) If I draw one card from this set, what is the probability that the card will be EITHER a star, or green? b) If I draw 3 cards from this deck, without replacement, what is the probability that all will be red circles?