Rules of Probability

Question

9500 students are enrolled in a community college. Of 9500, 3350 have a Visa, 2200 have a MasterCard, and 860 have both credit cards. Find the probability that a student selected randomly:

1. Has only Visa Card.
2. Has both Visa and a MasterCard.
3. Has exactly one of the card.
4. Has neither a Visa nor a MasterCard
5. Draw the Venn diagram.