that will be 1/2 + 1/2 * 1/6 = 1/2 + 1/12 = 7/12
you want P(heads OR (tails and n=3))
Find the probability of the following event:
tossing a coin heads up or rolling a 3 with a number cube.
I got: 1/2+1/6 = 2/3 but the right answer is 7/12. I don't understand how to get 7/12. Please help.
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