a cookie jar contains four oatmeal raisin, one sugar, nine chocolate chip, and six peanut butter cookies. if one is chosen at random, find each probability.

Step-by-step explanation:

There are a total of 4 + 1 + 9 + 6 = 20 cookies. So the probabilities of each type for a random cookie are:

P (oatmeal raisin) = 4/20 = 1/5

P (sugar) = 1/20

P (chocolate chip) = 9/20

P (peanut butter) = 6/20 = 3/10