# Math

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?

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1. 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.

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posted by PsyDAG
2. So would it be 7:1

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3. Looks good!

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posted by PsyDAG

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