There are two different raffles you can enter.Out of 250 tickets in raffle A, each costing $7, one ticket will win a $460 prize. The remaining tickets will win nothing.Raffle B has 50 tickets, and each costs $14. One ticket will win a $790 prize, one ticket will win a $760 prize, one ticket will win a $710 prize, and one ticket will win a $20 prize. 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.Out of 250 tickets in raffle A, each costing $7, one ticket will win a $460 prize. The remaining tickets will win nothing.Raffle B has 50 tickets, and each costs $14. One ticket will win a $790 prize, one ticket will win a $760 prize, one ticket will win a $710 prize, and one ticket will win a $20 prize. The remaining tickets will win nothing.Which raffle is a better deal?(A)Raffle A(B)Raffle B
Calculate Expected Value Raffle A: Calculate the expected value for Raffle A.Expected value = (\text{Probability of winning} \times \text{Prize value}) - (\text{Probability of losing} \times \text{Cost per ticket})Expected value for Raffle A = (2501×$(460))−(250249×$(7))
Perform Calculations Raffle A: Perform the calculations for Raffle A.Expected value for Raffle A = ($1.84)−($6.972)Expected value for Raffle A = −$5.132
Calculate Expected Value Raffle B: Calculate the expected value for Raffle B.Expected value for Raffle B = (Probability of winning the $790 prize ∗ Prize value) + (Probability of winning the $760 prize ∗ Prize value) + (Probability of winning the $710 prize ∗ Prize value) + (Probability of winning the $20 prize ∗ Prize value) - (Probability of losing ∗ Cost per ticket)Expected value for Raffle B = (\frac{\(1\)}{\(50\)} \(* \$\(790\)) + (\frac{\(1\)}{\(50\)} \(*\) \$\(760\)) + (\frac{\(1\)}{\(50\)} \(*\) \$\(710\)) + (\frac{\(1\)}{\(50\)} \(*\) \$\(20\)) - (\frac{\(46\)}{\(50\)} \(*\) \$\(14\))\)
Perform Calculations Raffle B: Perform the calculations for Raffle B.\(\newline\)Expected value for Raffle B = \((\$15.8 + \$15.2 + \$14.2 + \$0.4) - (\$13.16)\)\(\newline\)Expected value for Raffle B = \(\$45.6 - \$13.16\)\(\newline\)Expected value for Raffle B = \(\$32.44\)