"In a group of voters, one-fifth of the Democrats are Independents and there are twice as many Republicans as Democrats. If there are 304 voters in the group and everyone is either a Democrat, a Republican, or an Independent, how many of each type are there?"
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.
Translate the following application into an algebraic equation:
"In a group of voters, one-fifth of the Democrats are Independents and there are twice as many Republicans as Democrats. If there are 304 voters in the group and everyone is either a Democrat, a Republican, or an Independent, how many of each type are there?"
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