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OpenStudy (anonymous):
A die is rolled three times. Find the chance that the face with 4 spots appears at least once.
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OpenStudy (raden):
by using the complement probability look will becomes easier so that the chance that the face with 4 spots appears at least once is = 1 - P(not 4, not 4, not 4) = 1 - ( 5/6 * 5/6 * 5/6 ) = 1 - 125/216 = 91/216
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