Posted by **marissa** on Monday, March 10, 2014 at 8:19pm.

. Mrs. Crenshaw has confiscated 4 cell phones from 4 different students because they used them during class. To get the cell phones back, they have to answer the fol- lowing question: What is the probability that no student receives his or her own phone if Mrs. Crenshaw hands them back at random at the end of the school day? What answer should they give?

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