A multiple-choice quiz contains 10 questions. Each question has one correct answer from the 4 possible choices. Suppose a student guesses on each question. a) What is the probability the student guesses exactly 3 correct? b) What is the probability at least one answer is correct? c) If the test had 100 questions, and the student guessed randomly on each, how many questions would you expect them to get correct?
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.
1)
A multiple-choice quiz contains 10 questions. Each question has one
correct answer from the 4 possible choices. Suppose a student guesses on
each question.
a) What is the
b) What is the probability at least one answer is correct?
c) If the test had 100 questions, and the student guessed randomly on
each, how many questions would you expect them to get correct?
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