Question 1162934
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This problem, word-in-word and number-in-number, was posted to the forum one or two years ago, 


and I solved it under this link


<A HREF=https://www.algebra.com/algebra/homework/Probability-and-statistics/Probability-and-statistics.faq.question.1141876.html</A>https://www.algebra.com/algebra/homework/Probability-and-statistics/Probability-and-statistics.faq.question.1141876.html</A>


https://www.algebra.com/algebra/homework/Probability-and-statistics/Probability-and-statistics.faq.question.1141876.html



Enjoy (!)