Last year at Townsburg High School, 28% of the graduating seniors took the ACT exam, 34% of the graduating seniors took the SAT exam, and 12% of graduating seniors too both exams. Find the proportion of students that took at least one of the two exams. Give an exact answer.
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.
Last year at Townsburg High School, 28% of the graduating seniors took the ACT exam, 34% of the graduating seniors took the SAT exam, and 12% of graduating seniors too both exams.
Find the proportion of students that took at least one of the two exams.
Give an exact answer.
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