+487 I have two cubes such that, on each cube, three faces are painted red and three faces are painted white. If I roll each of the cubes once, what is the probability that they will land such that there is one red face and one white face up?
+2407 Hello
Which possibilities satisy this case:
There are 2 possibilities for this to work.
Rolling a red face, then a white face.
Or rolling a white face then a red face.
Case 1: (Rolling a red face, then a white face.)
Probability of rolling a red face is 3/6, and probability of rolling a white face is 3/6.
So the probability of rolling a red face, then a white face is 3/6*3/6 = 1/4
Case 2: (Rolling a white face, then a red face.)
Probability of rolling a red face is 3/6, and probability of rolling a white face is 3/6.
So the probability of rolling a white face, then a red face is 3/6*3/6 = 1/4
Addition:
So the probability that either happen is 1/4 + 1/4 = 1/2.
I hope this helped. :))
=^._.^=
