Textbook Notes (362,734)
Canada (158,032)
Economics (480)
ECO220Y1 (33)
Chapter 4

Chapter 4.docx

1 Page
Unlock Document

University of Toronto St. George
Migiwa Tanaka

Chapter 4: Displaying and Describing Categorical Data The main rule of Data Analysis: 1. Make a picture (will help to reveal things you’re not likely to see in a table of numbers, and will help you report your findings to others) Frequency table: tells us how frequent something exists (ie) how many Loblaws stores in Ontario Relative Frequency Table: records percentages to show how many __ there are relative to the total (ie) how many stores in Ontario relative to total Canadian stores not to be confused by the area* -height tells us how many times 1 item is relative to another Area Principle: area occupied by a part of the graph should correspond to the magnitude of the value it represents BAR CHARTS: -give us an accurate visual impression of the distribution Bar Chart: displays the distribution of a categorical variable, showing the counts for each category next to each other for easy comparison –space bw each bar -same widths, different heights Pie Charts: show the whole group of cases as a circle always check that the data represent 100% of something -make sure no 2 categories overlap (no individual is cou
More Less

Related notes for ECO220Y1

Log In


Don't have an account?

Join OneClass

Access over 10 million pages of study
documents for 1.3 million courses.

Sign up

Join to view


By registering, I agree to the Terms and Privacy Policies
Already have an account?
Just a few more details

So we can recommend you notes for your school.

Reset Password

Please enter below the email address you registered with and we will send you a link to reset your password.

Add your courses

Get notes from the top students in your class.