There are two different raffles you can enter.Raffle A is for a $750 prize. Out of 200 tickets, each costing $19, one ticket will win the prize, and the rest will win nothing.Raffle B is for a $170 prize. Out of 250 tickets, each costing $16, one ticket will win the prize, and the remaining tickets will win nothing.Which raffle is a better deal?(A) Raffle A(B) Raffle B
Q. There are two different raffles you can enter.Raffle A is for a $750 prize. Out of 200 tickets, each costing $19, one ticket will win the prize, and the rest will win nothing.Raffle B is for a $170 prize. Out of 250 tickets, each costing $16, one ticket will win the prize, and the remaining tickets will win nothing.Which raffle is a better deal?(A) Raffle A(B) Raffle B
Calculate Expected Value Raffle A: Calculate the expected value for Raffle A.E(A) = (\text{Prize value} \times \text{Probability of winning}) - (\text{Cost per ticket})E(A)=($750×2001)−$19E(A)=$3.75−$19E(A)=−$15.25
Calculate Expected Value Raffle B: Calculate the expected value for Raffle B.E(B)=(Prize value×Probability of winning)−(Cost per ticket)E(B)=($(170)×2501)−$(16)E(B)=$(0.68)−$(16)E(B)=−$(15.32)
Compare Expected Values: Compare the expected values of Raffle A and Raffle B.Since −$15.25 is greater than −$15.32, Raffle A has a less negative expected value, making it the better deal.