red balls and 4 blue balls are in a bag. Four balls from the bag are selected at random (= without replacement, each ball equally likely). What is the probability that four red balls will be selected? Try to use combinations and binomial coefficients, NOT tree diagrams. And simplify those ratios of factorials as much as possible. a. 5/126 b. 2/63
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.
5 red balls and 4 blue balls are in a bag. Four balls from the bag are selected at random (= without replacement, each ball equally likely). What is the
Try to use combinations and binomial coefficients, NOT tree diagrams. And simplify those ratios of factorials as much as possible.
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