2 balls are selected randomly, without replacement, from a bag containing 6 red balls and 4 blue balls. Let X be the number of selected red balls. Discuss whether X is a binomial random variable. Your discussion should include the following aspects: • Is there a fixed number of trials? • Is the probability of success for each trial the same? • Are the trials independent?
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.
2 balls are selected randomly, without replacement, from a bag containing 6 red balls and
4 blue balls. Let X be the number of selected red balls. Discuss whether X is a binomial
random variable. Your discussion should include the following aspects:
• Is there a fixed number of trials?
• Is the
• Are the trials independent?
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