In a college, there are 25 students who enrolled for commerce only, 105 students enrolled for mathematics only, 30 students enrolled for commerce and mathematics both and 60 students enrolled for others. If a student is selected at random, what is the probability that he or she enrolled either for commerce or mathematics.
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.
In a college, there are 25 students who enrolled for commerce only, 105 students enrolled for mathematics only, 30 students enrolled for commerce and mathematics both and 60 students enrolled for others. If a student is selected at random, what is the
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