Approximately 90% of all people are right-handed. Consider a grouping of ten people. Assume that the requirements for a binomial distribution have been satisfied. What is the probability that at most 5 will be right handed ?
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.
Given information-
We have given approximately 90% of all people are right-handed.
P = 0.90
Let X is a random variable shows the number of right-handed people.
Here X has binomial distribution with parameters n = 10 and p = 0.90.
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