3. [11 marks] You have ve friends taking a Probability course, and everyone has been working remotely on an assignment that is due in two days. You cannot seem to get the answer to the last question though. Suppose that two of your friends have the expertise to answer the last question on the assignment. In order to get help, you decide to call your ve friends in the course, in a random order, until you reach a friend that can help you solve the assignment question. Let the random variable X represent the number of friends in the class that you contact