A recent survey showed that the probability of a student using an on-line motorcycle taxi is 0.6. Furthermore, if it is known that students are over 21 years of age, then the probability of riding an on-line motorcycle taxi is 0.8. It is also known that 30% of students are over 21 years of age. If a student is taken at random, what is the probability that he or she uses an on-line motorcycle taxi or is over 21 years old?
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 recent survey showed that the
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