You are to take a multiple-choice exam consisting of 100 questions with two possible responses to each question. Suppose that you have not st and so must guess (select one of the two answers in a completely random fashion) on each question. Let x represent the number of correct res on the test. In USE SALT (a) What kind of probability distribution does x have? O binomial O geometric (b) What is your expected score on the exam? (Hint: Your expected score is the mean value of the x distribution.) (c) Calculate the variance of x.

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A:

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A:

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A:

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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.