Two balls are drawn from a box that contains one blue ball, one red, one green and one yellow. Define the sample space when:

1The first ball is returned to the box before drawing the second.

S = {BB, BR, BG, BY, RB, RR, RG, RY, GB, GR, GG, GY, YB, YR, YG, YY}

1The first ball is not returned to the box before the second is drawn.

S = { BR, BG, BY, RB, RG, RY, GB, GR, GY, YB, YR, YG}

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