You want to understand whether having an effective (i.e., good) advisor affects students’ academic achievement. Suppose that the assignment of students to their advisors is not random. What can you do to decrease selection bias and get closer to estimating the causal effect? Think of ways other than random assignment.
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.
You want to understand whether having an effective (i.e., good) advisor affects students’ academic achievement. Suppose that the assignment of students to their advisors is not random. What can you do to decrease selection bias and get closer to estimating the causal effect? Think of ways
other than random assignment.
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