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4. Find the probability of a baseball player with a batting average of 30% getting

2 hits in 2 at-bats. (Batting average = hits )
at-bats

5. There are three marbles numbered 1, three marbles numbered 2 , and two
marbles numbered 3 in the bag. Take 1 marble out of the bag and put it back in
the bag. Then, take out another marble. Find the probability of getting two
marbles numbered 3.

13 2

31

22

1

6. There are two marbles numbered 1, three marbles numbered 2, and one marble
numbereds 3 in the bag. Take 1 marble out of the bag. Then, take out another
marble from the bag without putting the 1st marble back in the bag. Find the
probability of getting a marble numbered 1 the first time and getting a marble
numbered 2 the second time.

1 2
2 2

3
1