A class in advanced physics is comprised of ten juniors, 30 seniors and 10 graduate students. The final grades showed that 3 of the juniors, 10 of the seniors and 5 of the graduate students received a grade of A for the course. 1. If a student is chosen at random from this class and is found to have earned an A, what is the probability that he or she is a senior? A. 1/5 B 1/3 C. 5/18 D. 5/9 2. If a student is chosen at random from this class and did no
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.
A class in advanced physics is comprised of
ten juniors, 30 seniors and 10 graduate students. The final grades
showed that 3 of the juniors, 10 of the seniors and 5 of the graduate
students received a grade of A for the course.
1. If a student is chosen at random from this class and is found to
have earned an A, what is the probability that he or she is a
senior?
A. 1/5 B 1/3 C. 5/18 D. 5/9
2. If a student is chosen at random from this class and did not earn a
grade of A, what is the probability that he or she is a senior?
A. 5/8 B. 2/5 C. 2/3 D. 1/4
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