A player will win if he rolls two dies and gets a sum equal to 6. If he plays 12 times, what is the probability that he gets at least 2 wins? b) Suppose that the number of customers that enter a bank in an hour is a Poisson random variable, and suppose that P(X =0) = 0.02. i. What is the probability that at most one person enter the bank in one hour? ii. Determine the mean and standard deviation of X
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.
A player will win if he rolls two dies and gets a sum equal to 6. If he plays 12 times, what is the probability that he gets at least 2 wins?
b) Suppose that the number of customers that enter a bank in an hour is a Poisson random variable, and suppose that P(X =0) = 0.02.
i. What is the probability that at most one person enter the bank in one hour?
ii. Determine the mean and standard deviation of X
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