SOLUTION: A fair coin is tossed 4 times. Find the conditional probability that the results are all heads given that they are not all tailes.
Algebra ->
Probability-and-statistics
-> SOLUTION: A fair coin is tossed 4 times. Find the conditional probability that the results are all heads given that they are not all tailes.
Log On
Question 1024418: A fair coin is tossed 4 times. Find the conditional probability that the results are all heads given that they are not all tailes. Answer by stanbon(75887) (Show Source):
You can put this solution on YOUR website! A fair coin is tossed 4 times. Find the conditional probability that the results are all heads given that they are not all tailes.
-----
P(4heads | not 4 tailes) = P(4heads and not 4 tailes)/P(not 4 tailes)
----------------
= (1/16)/(15/16) = 1/15
-------------
Cheers,
Stan H.
--------------