Mathematics
Math Question pre cal 11

Question Description

At a restaurant, how could you choose one out of three desserts with equal probability with the help of a coin?

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Final Answer

Toss the coin twice. 

Let Tails-Heads, Heads-Tails and Tails-Tails correspond to the three choices. (so tails-heads = cookies, heads-tails = ice cream, tails-tails = brownie)

So, first time I flip the coin I get tails. So I know my choices are now cookies or brownies. Once I flip again I get heads. So the dessert will be cookies!)

And if you get Heads-Heads, just repeat the toss.

kmldx4 (159)
Purdue University

Anonymous
Awesome! Perfect study aid.

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