What is the probability that a. the teacher teach only one subject. b. the teacher teach all three subject
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 school, a group of teachers teach at least one of the three following subjects:
mathematics, physic and chemistry. There are 18 teacher teaching mathematics, 12
teaching physic and 18 teaching chemistry. 3 teachers teach mathematics and physic,
1 teacher teach physic and chemistry, 4 teachers teach only mathematics and
chemistry and 6 teaching all subject. What is the
a. the teacher teach only one subject.
b. the teacher teach all three subject
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