In a survey of 7780 workers, the following question was asked: How often are you late for work? A summary of the results of the survey follow: If a worker in the survey is chosen at random, what is the probability that he or she: a) Was never late for work? b) Was late once a year?
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 survey of 7780 workers, the following question was asked: How often are you late for work? A summary of the results of the survey follow:
If a worker in the survey is chosen at random, what is the probability that he or she: a) Was never late for work?
b) Was late once a year?
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