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Mathematics 22 Online
OpenStudy (anonymous):

The faces of a tetrahedron die are numbered 1 to 4. Each of the 4 sides is equally likely to land down. What is the probability that the 2 does not end up face down?

OpenStudy (anonymous):

tetrahedron has 4 sides ......only 1 face can face down each time......so prob that 2 ENDS UP facing down is 1/4......if it DOESNT end up facing down prob is (1-1/4)=3/4

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