a). A student is taking multiple choice exam in which each question has four possible answers, exactly one which is correct. If the student knows the answer he (she) selects one answer at random from the four possible answers. Suppose that the student knows the answers to 55% of the questions. What is the probability that on a given question the student gets the correct answer?
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). A student is taking multiple choice exam in which each question has four possible answers, exactly one which is correct. If the student knows the answer he (she) selects one answer at random from the four possible answers. Suppose that the student knows the answers to 55% of the questions.
What is the probability that on a given question the student gets the correct answer?
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