Two balls are drawn from a bag containing 4 white balls and 3 red balls. If the first ball is replaced before the second is drawn, what is the probability that the following will occur? (Enter your probabilities as fractions.)
(a) both balls are red
(b) both balls are white
(c) the first ball is red and the second is white
(d) one of the balls is black
A die is thrown twice. What is the probability that a 2 will
result the first time and a 6 the second time? (Assume the die is
six sided with each side numbered one through six. Enter your
probabilities as a fraction.)
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