Brendalee and Mohammed go to a coffee shop during their lunch break and toss a coin to see who will pay. The probability that Brendalee will pay three days in a row?

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- Jan 29th 2009, 08:36 PMjax760probability die roll
Brendalee and Mohammed go to a coffee shop during their lunch break and toss a coin to see who will pay. The probability that Brendalee will pay three days in a row?

- Jan 29th 2009, 10:04 PMmr fantastic
- Jan 29th 2009, 10:05 PMRapha
Hi.

They toss a coin

The probability: Brendalee wins is = 1/2; Brendalee doesn't win = 1-1/2 = 1/2

Now we want to know:

probability(Brandalee loose, Brandalee loose, Brandalee loose) = 1/2 * 1/2 * 1/2 = 1/8

Edit: aaargh, too slow.