If the random variable X denotes the number of heads when th

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14 + 6 =
Solve this simple math problem and enter the result. E.g. for 1+3, enter 4.

If the random variable X denotes the number of heads when three distinct coins are tossed, then X assumes the value:

None of these

1, 3, 3, 1

0, 1, 2, 3

1, 2, 3