2. Your friend and you plan to have a long road trip. You prepare a non-transparent bag for snacks: 5 oatmeal raisin cookies and 4 peanut butter cookies. After 30 minutes of driving, you reach in the bag without looking and take out a cookie at random and eat it. After another 30 minutes, you take out another cookie (again randomly, without looking). c) Use the tree to construct a discrete probability distribution for the number of oatmeal raisin cookies you take out of the bag. d) From the discrete probability distribution you constructed in c), calculate the mean and standard deviation of the number of oatmeal raisin cookies you take out of the bag