involving a true/false and multiple-choice test. Assume that the test has 4 true/false questions, and 12 multiple-choice questions (5 options per question), each with exactly one correct answer. If a student guesses randomly on each question, what is her expected score?
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.
Rework problem 25 from section 4.3 of your text, involving a true/false and multiple-choice test. Assume that the test has 4 true/false questions, and 12 multiple-choice questions (5 options per question), each with exactly one correct answer.
If a student guesses randomly on each question, what is her expected score?
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