A package of self-sticking 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?
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.
You are partially correct in calculating the total number of notepads and the number of blue and green notepads. However, your approach to calculating the probability is not correct.
To find the probability that a green notepad is selected given that it is either blue or green, we need to consider only the blue and green notepads. Out of the 12 blue and green notepads, 6 of them are green. Therefore, the probability of selecting a green notepad from the blue or green selection is 6/12 = 1/2.
So, the correct answer is indeed A) 1/2.
Yes, your answer is correct.
To calculate the probability of selecting a green notepad given that it is either blue or green, you need to first determine the number of blue and green notepads.
From the given information, there are a total of 6 blue notepads and 6 green notepads. So, the total number of notepads that are either blue or green is 6 + 6 = 12.
Since there are 24 total notepads, the probability of selecting a green notepad given that it is either blue or green is 12/24, which simplifies to 1/2.
So, the answer is A) 1/2.