The following table is partial probability distribution for the MRA Company's projected profits (x=profits in $1000s) for the first year of operation (the negative denotes a loss).
| x |
f(x) |
| -100 |
.10 |
| 0 |
.20 |
| 50 |
.30 |
| 100 |
.25 |
| 150 |
.10 |
| 200 |
a. what is the proper value for f(200)? What is your interpretation of this value?
b. What is the prpbability that MRA will be profitable?
c. What is the probability that MRA will make at least $100,000?