to play the game, which must be subtracted from the winnings. If a club is drawn, the player wins 21 dollars; otherwis they lose their 14 dollars. Calculate the price that would make the game fair. The expected value of this game is dollars. (Round to the nearest cent as needed.)

A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
Section: Chapter Questions
Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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### Calculating the Expected Value of a Card Game

In this exercise, we will determine the expected value for a game involving a standard 52-card deck. This will help us understand how much a player can expect to win or lose on average per game.

#### Game Rules:
1. A player must pay $14 to participate in the game.
2. The goal is to draw a card from a standard 52-card deck.
3. If a club is drawn (one of the 13 clubs in the deck), the player wins $21.
4. If any other suit is drawn (one of the 39 non-club cards), the player loses their $14.

#### Problem Statement:
Calculate the price that would make the game fair for the player.

#### Calculations:

1. **Determine the Probability of Each Outcome:**
   - Probability of drawing a club (P(club)): 
     \[
     \frac{13}{52} = \frac{1}{4} = 0.25
     \]
   - Probability of drawing a non-club (P(non-club)): 
     \[
     \frac{39}{52} = \frac{3}{4} = 0.75
     \]

2. **Calculate the Winnings and Losses:**
   - Winning amount when a club is drawn: $21
   - Loss amount when a non-club is drawn: $14

3. **Expected Value Calculation:**
   The expected value (EV) is given by the formula:
   \[
   \text{EV} = (\text{P(club)} \times \text{Winnings}) + (\text{P(non-club)} \times \text{Loss})
   \]

   Substituting the probabilities and amounts:
   \[
   \text{EV} = (0.25 \times 21) + (0.75 \times (-14))
   \]
   \[
   \text{EV} = (5.25) + (-10.5)
   \]
   \[
   \text{EV} = -5.25
   \]

4. **Fair Game Calculation:**
   For the game to be fair, the expected value should be zero. Let "X" be the price that makes the game fair:
   \[
   0 = (0.25 \times 21) + (0.75 \
Transcribed Image Text:### Calculating the Expected Value of a Card Game In this exercise, we will determine the expected value for a game involving a standard 52-card deck. This will help us understand how much a player can expect to win or lose on average per game. #### Game Rules: 1. A player must pay $14 to participate in the game. 2. The goal is to draw a card from a standard 52-card deck. 3. If a club is drawn (one of the 13 clubs in the deck), the player wins $21. 4. If any other suit is drawn (one of the 39 non-club cards), the player loses their $14. #### Problem Statement: Calculate the price that would make the game fair for the player. #### Calculations: 1. **Determine the Probability of Each Outcome:** - Probability of drawing a club (P(club)): \[ \frac{13}{52} = \frac{1}{4} = 0.25 \] - Probability of drawing a non-club (P(non-club)): \[ \frac{39}{52} = \frac{3}{4} = 0.75 \] 2. **Calculate the Winnings and Losses:** - Winning amount when a club is drawn: $21 - Loss amount when a non-club is drawn: $14 3. **Expected Value Calculation:** The expected value (EV) is given by the formula: \[ \text{EV} = (\text{P(club)} \times \text{Winnings}) + (\text{P(non-club)} \times \text{Loss}) \] Substituting the probabilities and amounts: \[ \text{EV} = (0.25 \times 21) + (0.75 \times (-14)) \] \[ \text{EV} = (5.25) + (-10.5) \] \[ \text{EV} = -5.25 \] 4. **Fair Game Calculation:** For the game to be fair, the expected value should be zero. Let "X" be the price that makes the game fair: \[ 0 = (0.25 \times 21) + (0.75 \
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