Statistical Sciences 2037A/B Lecture Notes - Lecture 12: Bar Chart
29 Oct 2018
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Document Summary
Very small (<30 students), small (31-60), medium (61-100), large (101-250), extra large (250+) Also identify year of study that each class belongs to. Might be interested in how class size and year of study relate to one another. Two-way tables/ contingency tables: see the relationship b/w 2 qualitative variables summarized in a contingency/ two-way table. Body of the table: once we"ve defined values of our qualitative variables, can summarize the frequency by which each category occurs in the data. Conditional distribution: consider the distribution of one variable given a particular value of the other variable. Restricting attention to one particular value/variable to see how the others are distributed. Investigating distribution of one variable on the condition that the value of the other variable is set. Based on conditional distribution bar charts of 1st year and 4th year class size frequencies, the chances of class size depends on if the course we choose is 1st year or 4th year course.
