Question

You buy $10 raffle ticket for a new car valued at $15,000. 2000 tickets are sold. What is expected value of your gain?

Answer 1

So your gains are given by:

$\text{gains}=\text{price of the car}-\text{price of the ticket}$

Then we get:

$\text{gains}=\text{\ }15000-\text{\ }10=\text{\ }14990$

And that's the value of your gain.