The number of lost-and-found requests received each day by a railroad ticket office is a random variable having a mean of 4.2. Find the probability that on any given day, the number of such requests will be a) exactly five b) exactly zero
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.
The number of lost-and-found requests received each day by a railroad ticket office is a random variable having a
a) exactly five
b) exactly zero
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