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April 20, 2014

April 20, 2014

Posted by **PLEASE HELP** on Sunday, November 25, 2012 at 3:45pm.

If they play 4 rounds of this game, all choosing their symbols at random, what's the probability that nobody wins any of the 4 games? Express your answer as a common fraction.

PLEASE HELP this is so hard I do not have any idea because I fail at probability. How do we do this?!

- PROBABILITY QUESTION PLEASE HELP!! -
**bobpursley**, Sunday, November 25, 2012 at 3:52pmPr=1-prwinning=1=- 1*1/3*2/3=1-2/9=7/9 is probablility of no one winning each game

Pr this happening four games= that to the 4th power, or (7/9)^4 = about .366

- PROBABILITY QUESTION PLEASE HELP!! -
**Answer!!**, Sunday, December 30, 2012 at 7:01pmFirst, we compute the total number of possible outcomes for each round. Each person can choose any of three different symbols, so the total number of possible outcomes is .

Now, we compute the number of outcomes in which no one wins. No one wins if all three symbols are the same (3 ways, one for each symbol), or each person presents a different symbol ( ways), so there are outcomes in which no one wins.

Therefore, the probability that no one wins a given round is . This means the probability that no one wins any of four rounds is .

- PROBABILITY QUESTION PLEASE HELP!! -
**HAHAHA**, Friday, November 8, 2013 at 5:58pmYou are all wrong, sorry to say. There are 3 ways they are all the same, and 6 ways they are all the same. added up, that's 9. Now the number of possibilities in total are 27 for each round. That's 9/27=1/3 for each round. (1/3)^4=1/81

- PROBABILITY QUESTION PLEASE HELP!! -
**Alecsun**, Monday, January 6, 2014 at 2:25am1/81

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