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January 31, 2015

January 31, 2015

Posted by **austin** on Saturday, November 1, 2008 at 11:51pm.

a) what are the odds in favor of getting exactly 2 heads

b) what are the odds against getting at most 1 tail

i got a) 3/4 b) 7/8

i dont think they are right can someone help

- math -
**PsyDAG**, Sunday, November 2, 2008 at 1:28amIf you flip a coin 3 times, here are the possible combinations:

HHH

THH

HTH

HHT

HTT

THT

TTH

TTT

Only 3 of the 8 possibilities will have exactly 2 heads.

The odds*against*getting at most 1 tail are the same as getting no tails. You are right with that answer.

I hope this helps. Thanks for asking.

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