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coin

by ketkoag » Wed Jun 10, 2009 3:02 am
A coin is tossed 3 times. What is the probability that it will be up with the same side in all the 3 times?

[spoiler]please explain how answer is ¼..[/spoiler]

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by sacx » Wed Jun 10, 2009 3:11 am
you have already posted this ques

https://www.beatthegmat.com/coin-t38336.html
SACX

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by ketkoag » Wed Jun 10, 2009 3:16 am
ohh, i'm sorry.. :oops:

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by sreak1089 » Wed Jun 10, 2009 3:17 am
When 3 coins tossed, It can happen in two ways all HHH or all TTT out
of 8 possibilities ==> 2/8 = 1/4