Suppose 60% of all college professors like tennis, 65% like bridge, and 50% like chess; 45% like any given pair of recreations. a) Should you be suspicious if told 20% like all three recreations? b) What is the smallest percentage who could like all three recreations? (use inclusion-exclusion to solve)
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.
Suppose 60% of all college professors like tennis, 65% like bridge, and 50% like chess; 45% like any given pair of recreations.
a) Should you be suspicious if told 20% like all three recreations?
b) What is the smallest percentage who could like all three recreations?
(use inclusion-exclusion to solve)
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