Your friend creates a dice-rolling game and challenges you to play it. In this game, you roll a fair six-sided die and the outcome of the die causes you to either win or lose money. You win $4 if the die comes up a 4 Nothing happens if a 6 comes up You lose $1 for any other roll Let X represent your winnings from a single game. What is , the expected value (mean) of the random variable X? A. $.25 B. $3 C. $0 D. -$4
Contingency Table
A contingency table can be defined as the visual representation of the relationship between two or more categorical variables that can be evaluated and registered. It is a categorical version of the scatterplot, which is used to investigate the linear relationship between two variables. A contingency table is indeed a type of frequency distribution table that displays two variables at the same time.
Binomial Distribution
Binomial is an algebraic expression of the sum or the difference of two terms. Before knowing about binomial distribution, we must know about the binomial theorem.
Your friend creates a dice-rolling game and challenges you to play it. In this game, you roll a fair six-sided die and the outcome of the die causes you to either win or lose money.
- You win $4 if the die comes up a 4
- Nothing happens if a 6 comes up
- You lose $1 for any other roll
Let X represent your winnings from a single game. What is , the
A. $.25
B. $3
C. $0
D. -$4
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