A piggy bank contains a mix of 60 pieces of nickels and 60 pieces of 25-centavo coins. The two kinds of coin are identical in size. Suppose that the two coins are drawn at a time until the piggy bank is empty. What is the probability that the number of times two nickels are drawn is equal to the number of times two 25-centavo coins are drawn?
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.
A piggy bank contains a mix of 60 pieces of nickels and 60 pieces of 25-centavo coins. The two kinds of coin are identical in size. Suppose that the two coins are drawn at a time until the piggy bank is empty. What is the
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