Posted by Larry on Thursday, October 3, 2013 at 8:09pm.
A package of selfsticking notepads contains 6 yellow, 6 blue, 6 green, and 6 pink notepads. An experiment consists of randomly selecting one of the notepads and recording its color. Find the probability that a green notepad is selected given that it is either blue or green.
A) 1/2
B) 1/3
C) 1/12
D) 1/4
I think the answer is A. I added 6+6+6+6= 24
then 6 blue + 6 green= 12
then 12/24= 1/2
Is this right?

Statistics  PsyDAG, Friday, October 4, 2013 at 1:20pm
From your description, I'm not sure what is being asked.
If it is "either blue or green," you are right. If it is just green ("green notepad is selected"), then 1/4 is correct.
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