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What is Probability of Couples Arrangement about?

This document contains the solutions to two problems from a math quiz. 1) The first problem calculates the probability that no wife sits next to her husband when four married couples are arranged in a row. The probability is 35/126. 2) The second problem calculates the probability that the first die shows a 1, given the sum of two fair dice rolls is a certain number from 2 to 12. It is 1/(i-1) for sums from 2 to 7, and 0 for sums from 8 to 12.

Author

xaviour111

Language

EN