The number of telephone calls that arrive at a phone exchange is often modeled as a poisson random variables. Assume that on the average that are 8 calls per hour. What is the probability that there are three or more calls per half an hour.
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 telephone calls that arrive at a phone exchange is often modeled as a poisson random variables. Assume that on the average that are 8 calls per hour. What is the
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