At a carnival, there is a game where you can draw one of 100 balls from a bucket. The balls are numbered from 1 to 100 . If the number on the ball is even, you win $13. If the number on the ball is odd, you win nothing. If you play the game, what is the expected payoff?
Q. At a carnival, there is a game where you can draw one of 100 balls from a bucket. The balls are numbered from 1 to 100 . If the number on the ball is even, you win $13. If the number on the ball is odd, you win nothing. If you play the game, what is the expected payoff?
Calculate probability of even number: Determine the probability of drawing an even-numbered ball. Since there are 100 balls numbered from 1 to 100, there are 50even numbers and 50odd numbers. Probability of drawing an even number=Total number of ballsNumber of even numbers Probability of drawing an even number =10050
Calculate expected payoff for even number: Calculate the expected payoff for drawing an even-numbered ball.The expected payoff for an event is calculated by multiplying the probability of the event by the payoff for that event.Expected payoff for even number = Probability of drawing an even number × Payoff for even numberExpected payoff for even number = (50/100)×$13
Perform expected payoff calculation: Perform the calculation for the expected payoff for drawing an even-numbered ball.Expected payoff for even number = $\(0\).\(5\) \times \$(\(13\))\(\newline\)Expected payoff for even number = \$(\(6\).\(50\))
Calculate probability of odd number: Determine the probability of drawing an odd-numbered ball.\(\newline\)Since there are \(50\) odd numbers out of \(100\) balls, the probability is the same as for even numbers.\(\newline\)Probability of drawing an odd number \(= \frac{\text{Number of odd numbers}}{\text{Total number of balls}}\)\(\newline\)Probability of drawing an odd number \(= \frac{50}{100}\)
Calculate expected payoff for odd number: Calculate the expected payoff for drawing an odd-numbered ball.\(\newline\)Since the payoff for drawing an odd-numbered ball is \(\$0\), the expected payoff is:\(\newline\)Expected payoff for odd number = Probability of drawing an odd number \(*\) Payoff for odd number\(\newline\)Expected payoff for odd number = \((\(50\) / \(100\)) \(*\) \$\(0\)\)\(\newline\)Expected payoff for odd number = \(\(0\).\(5\) \(*\) \$\(0\)\)\(\newline\)Expected payoff for odd number = \(\$0\)
Calculate total expected payoff: Calculate the total expected payoff for playing the game.\(\newline\)The total expected payoff is the sum of the expected payoffs for each possible outcome.\(\newline\)Total expected payoff = Expected payoff for even number + Expected payoff for odd number\(\newline\)Total expected payoff = \(\$6.50\) + \(\$0\)\(\newline\)Total expected payoff = \(\$6.50\)
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