PL HEL!
1) Suppose you purchase a raffle ticket for $5.00. First prize is $100, second prize is $25, and third prize is $6. If 1,000 tickets are sold, what should you expect to win or lose? Round the answer to the nearest cent.

1) $0.99 gain

2) $1.00 gain

3) $4.87 loss

4) $4.99 loss

2) This table shows the probability distribution of scores on the 2011 AP Biology exam. Use the distribution to calculate the expected score of a randomly-selected score. Round the answer to the nearest tenth.

x p(x)
5 0.188
4 0.165
3 0.152
2 0.146
1 0.348

1) 4.1

2) 3.5

3) 2.7

4) 0.9