document.write( "Question 1197311: 1. In a game,using a fair die, a player bet #5 on a given number shows up, otherwise the #5 bet is won. What is the expected value of the game.
\n" ); document.write( "2. 5000 ticket is sold at #5 each for a raffle, ticket are to be drawn at random and price of #1000 each, 5 price of #200 each 20 price of #50 each. A man buy one of the raffle ticket. (a) what is the expected value for the man.
\n" ); document.write( "(b) calculate the probability that he win a price.
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Algebra.Com's Answer #848400 by ElectricPavlov(122)\"\" \"About 
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**1. Expected Value of the Die Game**\r
\n" ); document.write( "\n" ); document.write( "* **Probability of Winning:** 1/6 (since there's one desired number on a 6-sided die)
\n" ); document.write( "* **Probability of Losing:** 5/6
\n" ); document.write( "* **Payoff for Winning:** $0 (bet is lost)
\n" ); document.write( "* **Payoff for Losing:** -$5 (bet amount)\r
\n" ); document.write( "\n" ); document.write( "* **Expected Value:** (Probability of Winning * Payoff for Winning) + (Probability of Losing * Payoff for Losing)
\n" ); document.write( " = (1/6) * $0 + (5/6) * (-$5)
\n" ); document.write( " = -$4.17\r
\n" ); document.write( "\n" ); document.write( "**Therefore, the expected value of the die game is -$4.17.** This means, on average, you're expected to lose $4.17 per game.\r
\n" ); document.write( "\n" ); document.write( "**2. Raffle Ticket Analysis**\r
\n" ); document.write( "\n" ); document.write( "* **Total Tickets Sold:** 5000
\n" ); document.write( "* **Prizes:**
\n" ); document.write( " * 1 prize of $1000
\n" ); document.write( " * 5 prizes of $200
\n" ); document.write( " * 20 prizes of $50\r
\n" ); document.write( "\n" ); document.write( "* **Total Prizes:** 1 + 5 + 20 = 26\r
\n" ); document.write( "\n" ); document.write( "* **(a) Probability of Winning a Prize:**
\n" ); document.write( " * Number of Winning Tickets / Total Tickets
\n" ); document.write( " * = 26 / 5000
\n" ); document.write( " * = 0.0052
\n" ); document.write( " * = 0.52%\r
\n" ); document.write( "\n" ); document.write( "* **(b) Expected Value for the Man:**\r
\n" ); document.write( "\n" ); document.write( " * **Total Prize Money:**
\n" ); document.write( " * ($1000 * 1) + ($200 * 5) + ($50 * 20) = $1000 + $1000 + $1000 = $3000\r
\n" ); document.write( "\n" ); document.write( " * **Expected Winnings:**
\n" ); document.write( " * (Total Prize Money / Total Tickets) - Cost of Ticket
\n" ); document.write( " * = ($3000 / 5000) - $5
\n" ); document.write( " * = $0.60 - $5
\n" ); document.write( " * = -$4.40\r
\n" ); document.write( "\n" ); document.write( "**Therefore, the expected value for the man is -$4.40.** This means, on average, he can expect to lose $4.40 per raffle ticket.
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