To compare textbook prices at the two most popular online booksellers, a Statistics student gathered information about 14 college textbooks from Amazon.com and bn.com on November 25, 2006. For each book, she recorded the name of the principal author, the title, the ISBN, the Amazon selling price (in dollars) and the B&N selling price (in dollars): author title ISBN Amazon B&N De Veaux Intro Stats 321286715 120.67 103.20 Christensen Introduction to Statistics 155459651 164.95 155.95 Thomas Calculus 321185587 154.67 152.00 Stewart Calculus 534393217 153.98 155.75 Simmons Calculus with Analytic Geometry 70576424 150.00 159.75 Alexander American Public School Law 534274242 128.95 115.85 Miller Business Law Today 324204841 108.95 103.95 Cheeseman Business Law 131984934 166.67 159.60 Berg Biochemistry 716787245 149.95 148.91 Raymond General Organic and Biological Chemistry 471447072  95.95 98.95 Atkins Chemical Principles 071675701X 141.95 139.75 Warren Financial & Managerial Accounting 324188013 158.95 145.95 Kieso Intermediate Accounting, Vol. 1 471771929 102.95 107.00 Garrison Managerial Accounting 72834943 134.69 147.96 Compute the correlation between Amazon price and B&N price for these textbooks (Assume the correlation conditions have been satisfied and round your answer to the nearest 0.001.)

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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.

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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.