Homework Help: Math

Posted by Jennifer on Saturday, January 23, 2010 at 6:39pm.

What are the odds in favor of getting at most two heads in three successive flips of a coin?

This problem has to be done in ratio not fraction.

Can anyone help?

Math - PsyDAG, Saturday, January 23, 2010 at 6:57pm
The possibilities from three coin tosses:

HHH
HHT
HTH
THH
THT
TTH
HTT
TTT

"At most two heads" fits every alternative except HHH.

I hope that helps.
Math - Jennifer, Saturday, January 23, 2010 at 6:59pm
So would it be 7:1
Math - PsyDAG, Sunday, January 24, 2010 at 10:48am
Looks good!

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