Saturday
September 20, 2014

Homework Help: Math

Posted by Shelagh on Wednesday, June 18, 2014 at 7:30pm.

Four coins fall onto the floor. Find the probability that
(a) exactly three coins land heads up
(b) all coins land tails up
(c) two or more coins land heads up
(d) no more than two coins land tails up
(e) at least one coin lands tails up

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