In a post office, customers visit at a rate of 20 customers per hour. Assume the number of visiting customers has an approximately Poisson distribution a) What is the probability that there are exactly 5 visiting customers in a given 10 minutes? b) Assume the office open every day at 8:00 am. Use exponential distribution to find the probability that the first customer comes after 8:05 am?
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 post office, customers visit at a rate of 20 customers per hour. Assume the number of visiting customers has an approximately Poisson distribution
a) What is the probability that there are exactly 5 visiting customers in a given
10 minutes?
b) Assume the office open every day at 8:00 am. Use exponential distribution to find the probability that the first customer comes after 8:05 am?
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