In an outbreak of typhoid fever among attendees of an acquaintance party, 99 persons ate spaghetti, 30 of whom developed typhoid fever, 63 ate mac-and-cheese of whom 20 developed typhoid fever. Which group of people had the higher attack rate? Express calculated answers in percentage and in 2 decimal places if applicable.
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 an outbreak of typhoid fever among attendees of an acquaintance party, 99 persons ate spaghetti, 30 of whom
developed typhoid fever, 63 ate mac-and-cheese of whom 20 developed typhoid fever. Which group of people had the
higher attack rate? Express calculated answers in percentage and in 2 decimal places if applicable.
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