math
posted by Lena .
a coin is tossed twice and a number cube is rolled. Find probability. 1 head, 1 tail,and 3

prob of 1 head and 1 tail = (1/2)(1/2) + (1/2)(1/2) = 1/2
prob of 1 head, 1 tail, and a 3
= (1/2)(1/6) = 1/12
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