**A four-of-a-kind is a 5-card hand inwhich 4 of the cards are of the same denomination,**

**such as J-J-J-J-6, 7-7-7-7-A, or 2-2-2-2-5.**

**b) What is the probability of getting four of a**

**kind?**

**Answer:**

there are 13 denominations of cards … each four-of-a-kind has a 5th card, which is one of 12 … so there are (13 * 12) possible four-of-a-kind hands … there are 52C5 possible 5 card hands … the probability of four-of-a-kind is [(13 * 12) / 52C5]