Below is a chart showing the years it takes students to earn a Bachelor’s degree and the probability a randomly selected student will earn a degree in a certain number of years. X P(X=x) 3 - .05 4 - .40 5 - .30 6 - 7 - .10 (a) Describe the random variable in (b) Find and label the probability it earn a Bachelor’s degree. (c) Find and label the probability it years to earn a Bachelor’s degree GIVEN it takes him or her more than 4 years to earn the degree. (d) Find the expected value. Interpret that number in a sentence.

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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.