Out of the 56 players on the football team, 24 are on honor roll and 18 have perfect attendance. Seven who are on honor roll also have perfect attendance. If a player is chosen at random, what is the probability that they are on honor toll, if it is known that they also have perfect attendance?

Over the course of the school year, you keep track of how much snow falls on a given day and whether it was a snow day. your data indicates that of twenty-one days with less than three inches of snow, five were snow days, while of the eight days with more than three inches of snow, six were snow days. if all you know about a day is that it is snowing, what is the probability that it will be a snow day?