An urn contains two red balls and five blue balls A. Draw three balls at random drom the urn, without replacement. Compute the expected number of red balls in your sample. B. Draw three red balls at random from the urn, with replacement Compute the expected number of red balls in your sample.
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.
An urn contains two red balls and five blue balls
A. Draw three balls at random drom the urn, without replacement. Compute the expected number of red balls in your sample.
B. Draw three red balls at random from the urn, with replacement Compute the expected number of red balls in your sample.
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