SOLUTION: Kareem buys a bag of cookies that contains 5 chocolate chip cookies, 5 peanut butter cookies, 5 sugar cookies and 4 oatmeal cookies. What is the probability that Kareem randomly se

Algebra ->  Probability-and-statistics -> SOLUTION: Kareem buys a bag of cookies that contains 5 chocolate chip cookies, 5 peanut butter cookies, 5 sugar cookies and 4 oatmeal cookies. What is the probability that Kareem randomly se      Log On


   

Question 1206296: Kareem buys a bag of cookies that contains 5 chocolate chip cookies, 5 peanut butter cookies, 5 sugar cookies and 4 oatmeal cookies. What is the probability that Kareem randomly selects a peanut butter cookie from the bag, eats it, then randomly selects an oatmeal cookie?
Answer by ikleyn(52785) About Me  (Show Source):
You can put this solution on YOUR website!
.
       choc     peanut   sugar   oatmeal
Total =  5    +   5 +      5   +   4      = 19.


P(first peanut, then oatmeal) = %285%2F19%29%2A%284%2F18%29 = %285%2F19%29%2A%282%2F9%29 = 10%2F171.    ANSWER

Solved.

The formula is self-explanatory.