Maths - probability
Please refer to the attachment.
I don't get why the answer is A.
If a white counter is already taken then it leaves 1W+2B.
Therefore, the probability of getting a white on the second attempt is 1/3 since only 1 white out of 3?
I don't get why the answer is A.
If a white counter is already taken then it leaves 1W+2B.
Therefore, the probability of getting a white on the second attempt is 1/3 since only 1 white out of 3?
(edited 2 years ago)
Original post by As.1997
Please refer to the attachment.
I don't get why the answer is A.
If a white counter is already taken then it leaves 1W+2B.
Therefore, the probability of getting a white on the second attempt is 1/3 since only 1 white out of 3?
I don't get why the answer is A.
If a white counter is already taken then it leaves 1W+2B.
Therefore, the probability of getting a white on the second attempt is 1/3 since only 1 white out of 3?
This might help: https://www.thestudentroom.co.uk/showthread.php?t=5437900
Original post by As.1997
Please refer to the attachment.
I don't get why the answer is A.
If a white counter is already taken then it leaves 1W+2B.
Therefore, the probability of getting a white on the second attempt is 1/3 since only 1 white out of 3?
I don't get why the answer is A.
If a white counter is already taken then it leaves 1W+2B.
Therefore, the probability of getting a white on the second attempt is 1/3 since only 1 white out of 3?
Heres a famous variant of the problem
https://en.wikipedia.org/wiki/Monty_Hall_problem#:~:text=Before%20the%20host%20opens%20a,%C3%97%2012%20%3D%2016.
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