Posted by **crystal** on Friday, January 14, 2011 at 4:55pm.

Robert says that if you toss three coins you get 3 H (3 Heads),2 H ( 2 heads), 1 H(1 Head), or oH(o Heads), so the probabliity of getting three heads is 1/4. How do you respond?

- Geometry -
**Reiny**, Friday, January 14, 2011 at 5:00pm
I would respond with

"Robert, you are wrong, the probability is 1/8"

- Geometry -
**drwls**, Friday, January 14, 2011 at 5:04pm
Robert is wrong. The four possible outcomes are not equally likely.

The probability of getting either zero or three heads in three tosses is 1/8 (for each).

The probability of getting either one or two heads is 3/8 (for each)

What does this have to do with geometry?

- Geometry -
**crystal**, Friday, January 14, 2011 at 5:08pm
your guess is as goods as mine.

- Geometry -
**crystal**, Friday, January 14, 2011 at 5:14pm
I think it has more to do with probablity

## Answer this Question

## Related Questions

- Geometry - Robert says that if you toss three coins you get 3H (#Heads), 2H (2 ...
- Advanced Math - The probability of getting 2 heads and 1 tail when three coins ...
- math answer check - Three coins are tossed, and the number of heads observed is ...
- Math - A game is played flipping three coins. If all three coins land heads up ...
- stat - Three coins are tossed, and the number of heads observed is recorded. (...
- Word Problem. - A game is played by flipping three coins. If all three coins ...
- Stat. - A trick coin has been weighted so that heads occurs with a probability ...
- math - A game is played by flipping three coins. If all three coins lands heads ...
- math - In a game, a player tosses a coin 4 times. If the player gets 3 or 4 ...
- algebra - A coin is tossed 3 times. Find the probability of obtaining the ...