(12pts) alexis wants to buy $500 worth of new clothes before school starts. she decides to have a garage sale to earn the money for the clothes. she hopes to sell her comic book collection for $200, stuffed toys for $100, a bicycle for $50, and a few knicknacks from her room for $250. the probabilities that her neighbors want to buy the stuff alexis is selling are distributed as shown in the table."
|p(x) probability|
|comics 1/4 |
|toys 1/4 |
|bikes 1/4 |
|knicknacks 1/4|
"what is alexis's expected garage sale income, and how much more would she need to earn to break even? "
a. the expected income is $150, and alexis would need $350 more to break even.
b. the expected income is $600, and alexis would need $100 less to break even.
c. the expected income is $300, and alexis would need $200 more to break even.
d. the expected income is $178.50, and alexis would need $321.50 more to break even.