0.4 of students enrolled in chemistry 100 this semester are freshmen, 0.3 sophomores 0.2 are juniors 0.10 seniors. 1000 students taking this course. 5 students are randomly selected from the 100. a) probability that exactly 2 of them are seniors? b) probability that at least 4 of them are sophomores?
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.
0.4 of students enrolled in chemistry 100 this semester are freshmen, 0.3 sophomores 0.2 are juniors 0.10 seniors. 1000 students taking this course.
5 students are randomly selected from the 100.
a)
b) probability that at least 4 of them are sophomores?
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