In a multiple choice exam, there are 5 questions and 4 choices for each question (a, b, c, d). Francis has not studied for the exam at all and decides to randomly guess the answers. What is the probability that Francis gets at least one question correct?
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 multiple choice exam, there are 5 questions and 4 choices for each
question (a, b, c, d). Francis has not studied for the exam at all and decides to randomly guess the answers.
What is the probability that Francis gets at least one question correct?
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