Box I contains 4 red and 8 blue marbles while box II contains 5 red and 3 blue marbles. An unfair coin is tossed –whoseprobability of turning up heads is 40%. If the coin comes up heads, box I is chosen and a random marble is chosen, otherwise if it is tails the marble is chosen from box II. Find the probability a red marble is chosen.
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.
Box I contains 4 red and 8 blue marbles while box II contains 5 red and 3 blue marbles. An unfair coin is tossed –whoseprobability of turning up heads is 40%. If the coin comes up heads, box I is chosen and a random marble is chosen, otherwise if it is tails the marble is chosen from box II.
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