For this question, similarly to #2, we want to look at how many college stadiums were built in the past 20 years. we know that 15% of stadiums have just been built in the past 20 years. how many stadiums out of the sample 20 would you expect to be built in the past 20 years? What is the probability that exactly 2 stadiums were built in the past 20 years? I see the expert answer has t
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.
For this question, similarly to #2, we want to look at how many college stadiums were built in the past 20 years. we know that 15% of stadiums have just been built in the past 20 years. how many stadiums out of the sample 20 would you expect to be built in the past 20 years? What is the
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