Calculation of the number of successes. Calculate the number of successes x suggested by the given statement a) Taken from a New York Times article: Out of 3,250 devices that exist in New York City to allow pedestrians to pass through by activating a button, 23% work. b) From a Gallup survey: of 1018 subjects surveyed, 22% smoked cigarettes the previous week. c) From a Gallup survey: of 976 surveyed subjects, 7% consumed an alcoholic drink every day.
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. Calculation of the number of successes. Calculate the number of successes x suggested by the given statement
a) Taken from a New York Times article: Out of 3,250 devices that exist in New York City to allow pedestrians to pass through by activating a button, 23% work.
b) From a Gallup survey: of 1018 subjects surveyed, 22% smoked cigarettes the previous week.
c) From a Gallup survey: of 976 surveyed subjects, 7% consumed an alcoholic drink every day.
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