Harry Onobr is in charge of the electronics section of a large department store. He has noticed that the probability that a customer, who is just browsing will buy something, is 0.3. Suppose that 20 customers browse in the electronics section each hour. a) What is the probability that at least one browsing customer will buy something during a specified hour? b) What is the probability that at least 4 browsing customers will buy something during a specified hour? c) What is the probability that no browsing customer will buy anything during a specified 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.
Harry Onobr is in charge of the electronics section of a large department store. He has noticed that the probability that a customer, who is just browsing will buy something, is 0.3. Suppose that 20 customers browse in the electronics
section each hour.
a) What is the probability that at least one browsing customer will buy something during a specified hour?
b) What is the probability that at least 4 browsing customers will buy something during a specified hour?
c) What is the probability that no browsing customer will buy anything during a specified hour?
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