SOLUTION: A cookie jar contains 12 oat meal cookies and 9 chocolate chip cookies. If 3 cookies are selected at random, what is the probability that at least one of the cookies is an oat meal

Question 851172: A cookie jar contains 12 oat meal cookies and 9 chocolate chip cookies. If 3 cookies are selected at random, what is the probability that at least one of the cookies is an oat meal cookie.
Answer by ewatrrr(24785) (Show Source): You can put this solution on YOUR website!



Hi,

 cookies: 12 oat meal and 9 chocolate chip 

3 cookies are selected at random

P(at least one is oatmeal) = 1 -P(no oatmeal) = 1 -   

RELATED QUESTIONS

A cookie jar contains 3 peanut butter cookies, 5 chocolate chip cookies, and 2... (answered by stanbon)
There are two cookie jars on the shelf in the kitchen. The red one has 10 chocolate chip... (answered by scott8148)
Mary bakes 8 chocolate chip cookies and 10 peanut butter cookies. Bill bakes 5 chocolate... (answered by Boreal)
#12
 
Alma buys a bag of cookies that contains 9 chocolate chip cookies, 8 peanut... (answered by ewatrrr)
Maxim buys a bag of cookies that contains 7 chocolate chip cookies, 7 peanut butter... (answered by ikleyn)
Jordan buys a bag of cookies that contains 4 chocolate chip cookies, 4 peanut butter... (answered by greenestamps,JmeLs)
Jon buys a bag of cookies that contains 7 chocolate chip cookies, 6 peanut butter... (answered by math_tutor2020)
María buys a bag of cookies that contains 8 chocolate chip cookies, 5 peanut butter... (answered by ikleyn)
I need help with this. 	


Bayes's theorem on conditional probabilities states that,... (answered by Boreal)