1) Out of 55 students, 24 are taking Physics and 21 are taking Chemistry and 12 students are in both courses. a) How many students are in neither course? b) How many are in either Physics or in Chemistry or in both ? c) What is the probability that a randomly chosen student is taking only the Chemistry course?
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.
1) Out of 55 students, 24 are taking Physics and 21 are taking Chemistry and 12 students are in both courses.
a) How many students are in neither course?
b) How many are in either Physics or in Chemistry or in both ?
c) What is the probability that a randomly chosen student is taking only the Chemistry course?
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