hi guys i have some homework and im struggling to work out how to do some of these problems:

1) If you flip a coin 3 times. Whats the probability of getting the order: Heads, tails, heads?

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- October 18th 2012, 07:01 AMjeffmama11112Stuck on simple probability question. Need help please
hi guys i have some homework and im struggling to work out how to do some of these problems:

1) If you flip a coin 3 times. Whats the probability of getting the order: Heads, tails, heads? - October 18th 2012, 07:11 AMharish21Re: Stuck on simple probability question. Need help please
how about first writing down the possible outcomes when you flip a coin 3 times?

Hint: when you toss a coin, you have two possible outcomes: H or T. If you toss a coin three times, the tree tosses are independent of each other. So there are 2*2*2=8 outcomes. Write them down - October 18th 2012, 07:18 AMjeffmama11112Re: Stuck on simple probability question. Need help please
Thanks harish here are the outcomes (8 OF THEM):

HHH

HHT

HTH

THH

HTT

THT

TTH

TTT - October 18th 2012, 07:30 AMharish21Re: Stuck on simple probability question. Need help please
- October 18th 2012, 07:37 AMjeffmama11112Re: Stuck on simple probability question. Need help please
1/8 lol i feel dumb for not knowing that haha. Thanks man

- October 18th 2012, 08:43 AMHallsofIvyRe: Stuck on simple probability question. Need help please
Another way of doing it: The probability of getting Heads on the first flip is 1/2. The probability of getting Tails on the first flip is 1/2. The probability of tails on the third flip is 1/2. The probability of getting those results on exactly that order is (1/2)(1/2)(1/2).

- October 18th 2012, 08:44 AMjeffmama11112Re: Stuck on simple probability question. Need help please
Thanks HallsofIv yeh thats another good way of putting it