Sam is taking a multiple choice test. Each question has 5 possible answers of which only one is correct. Sam knows the answers to 60 percent of the questions, but when he does not know he simply guesses. As he is not careful, if he does know the answer, he has a 20 percent chance of accidentally marking the wrong answer, even though he knows which one is correct. What is the probability that he knows the answer to question 13 given he marked it correctly?
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.
Sam is taking a multiple choice test. Each question has 5 possible answers of which only one is correct. Sam knows the answers to 60 percent of the questions, but when he does not know he simply guesses. As he is not careful, if he does know the answer, he has a 20 percent chance of accidentally marking the wrong answer, even though he knows which one is correct. What is the
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