A bag contains 8 red marbles, 6 white marbles, and 5 blue marbles. You draw 3 marbles out at random, without replacement. What is the probability that exactly two of the marbles are red?
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 bag contains 8 red marbles, 6 white marbles, and 5 blue marbles. You draw 3 marbles out at random, without replacement.
What is the
According to the combination rule, if r distinct items are to be chosen from n items without replacement, in such a way that the order of selection does not matter, then the selection can be made in (nCr) = n! / [r! (n – r)!] = [n (n – 1) … (n – r + 1)] / r! ways.
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