A multiple choice exam has 200 questions each with 4 possible answers. Jim is completely unprepared for this exam so he decides to randomly select one of the 4 possible answers for each question. a) What is the probability that he will answer 60 or fewer of the questions correctly? b) What is the probability that he will need 5 or fewer trials for his 2nd success?
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.
8) A multiple choice exam has 200 questions each with 4 possible answers. Jim is completely unprepared for this exam so he decides to randomly select one of the 4 possible answers for each question.
a) What is the probability that he will answer 60 or fewer of the questions correctly?
b) What is the probability that he will need 5 or fewer trials for his 2nd success?
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