A student takes a multiple-choice test with 5 possible answer choices for each of the 20questions. Assume the student guesses randomly on each question.(a) Find the probability that the student’s score matches their expected score.(b) Is it more likely that the student scores below their expected score or that thestudent scores above their expected score? Explain.
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 student takes a multiple-choice test with 5 possible answer choices for each of the 20
questions. Assume the student guesses randomly on each question.
(a) Find the probability that the student’s score matches their expected score.
(b) Is it more likely that the student scores below their expected score or that the
student scores above their expected score? Explain.
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