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Three tiles are marked X and two other tiles are marked O. The five tiles are randomly arranged in a row. What is the probability that the arrangement reads XOXOX?

 Mar 2, 2021
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\(\binom{5}{3}\)=10 ways to arrange

 

There is 1 way to make XOXOX

 

the answer is 1/10

 Mar 2, 2021

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