SOLUTION: a bag contains six blue pencils, three red pencils, and three pencils. If two penciles are selected at random without replacement, what is the probability that both are red?
Algebra ->
Probability-and-statistics
-> SOLUTION: a bag contains six blue pencils, three red pencils, and three pencils. If two penciles are selected at random without replacement, what is the probability that both are red?
Log On
Question 846679: a bag contains six blue pencils, three red pencils, and three pencils. If two penciles are selected at random without replacement, what is the probability that both are red? Answer by stanbon(75887) (Show Source):
You can put this solution on YOUR website! a bag contains six blue pencils, three red pencils, and three pencils. If two penciles are selected at random without replacement, what is the probability that both are red?
--------------
# of ways to succeed: 3C2 = 3
------
# of random pairs: 12C2 = (12/11)/(1*2) = 66
-----
P(2 red pencils) = 3/66 = 1/22
---------------------------------
Cheers,
Stan H.
======================
(