In a secondary school, 58% of students who is studying in an art course have purchased a drawing board. If 120 students are randomly selected, what is the probability that at least 90 of them have purchased a drawing board?
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 secondary school, 58% of students who is studying in an art course have purchased a drawing board.
If 120 students are randomly selected, what is the
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