Suppose you flip a coin t'wice. On any flip , the coin comes up heads with probability 1/4. Use Hi and Ti to denote the result of flip i. (a)   What is t he probability, P[H1 IH2], that the first flip is heads given that the second flip is heads? (b)  What is the probabilit:y that t he first flip is heads and the second flip is tails?

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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.