There are 50 total students in the 12th grade at bayside high. thirty three students are enrolled in ap calculus and twenty seven are enrolled in ap english. three students are enrolled in neither ap class. how many students are enrolled in only ap calculus?

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?