Suppose that an ordinary deck of 52 playing cards will be randomly ordered, and then the cards will be flipped over and observed, one after another. Letting X be the number of cards observed prior to observing a black ace, give the value of Var(X).
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.
Suppose that an ordinary deck of 52 playing cards will be randomly ordered, and then the cards will be flipped over and observed, one after another. Letting X be the number of cards observed prior to observing a black ace, give the value of Var(X).
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