A certain sweepstakes ticket has four categories of prizes with the following probabilities of being won:



Prize

Probability


$100,000

1/500,000


$50,000

1/250,000


$20,000

1/200,000


$10,000

1/100,000

If each ticket costs $1.00, what is the expected gain or loss?
Select one:
a. $.60
b. $6.00
c. $4.00
d. $.40

2 answers

Multiply each possible prize times the chance of winning and add them all up. compare that number with $1 to find your expected gain or loss. If the number is larger, you have a gain. If the number is smaller, you have a loss.
the number is larger