In a survey of 400 members of a local sports club, 200 members indicated that they plan to attend the next Summer Olympic Games, 120 indicated that they plan to attend the next Winter Olympic Games, and 80 indicated that they plan to attend both games. How many members of the club plan to attend (a) At least one of the two games? (b) Exactly one of the games? (c) The Summer Olympic Games only?
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.
In a survey of 400 members of a local sports club, 200 members indicated that they plan to attend the next Summer Olympic Games, 120 indicated that they plan to attend the next Winter Olympic Games, and 80 indicated that they plan to attend both games. How many members of the club plan to attend
(b) Exactly one of the games?
(c) The Summer Olympic Games only?
(d) None of the games?
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