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October 25, 2014

Homework Help: Y12 Maths A

Posted by Anne on Friday, August 16, 2013 at 6:35am.

Suppose you had written 50 letters and addressed 50 envelopes and then inserted the letters randomly.
What is the probability that exactly one letter goes to the wrong person
(ii) What is the probability that each letter goes to the correct person? Justify your decision.

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