A town has 6 parks. One day, 6 friends, who are unaware of each other's decision, choose a park randomly and go there at the same time. What is the probability that at least 2 of them go to the same park?(adsbygoogle = window.adsbygoogle || []).push({});

Any idea for this kind of question? I have an idea, but I don't know how to put in a mathematical way.

Let Event A = at least 2 of them go to the same park ; Event B = all of them go to the different park. ( They are not going to meet each other )

So, P(A) = 1 - P(B).. Then i don't know how to continue. =(

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# A town has 6 parks. One day, 6 friends, who are unaware of each

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