A boy has his weekly allowance determined every Sunday by drawing one paper bill randomly from containing 5 bills in total: four $1 bills, and one $10 bill. $1 $1 $1 $1 $10 His parents refill the urn every week, so the content of the urn stavs the same every week.
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.
Let Xi be the allowance the boy gets in the ith week. Find the
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