HUMBEHV 3HB3 Lecture Notes - Lecture 3: Histogram, Unimodality

• School: McMaster University
• Department: Human Behaviour
• Course: HUMBEHV 3HB3
• Professor: ALL

Document Summary

A persons happiness and your self-reported happiness on the test that is numerical may not be accurate, we cannot prove that this is an effective measure. It has some features of a histogram: stem is vertical, horizontal are the leaves, this is better than a table because you can still see trends and patterns. It"s like a table, allows you to recreate the original data. Bar graphs: most common graph, the height typically represents the mean, they are qualitative variables, we do not know what the range is. It tells you the mean but it does not tell you anything else about the data. Line graphs: useful when you have two quantitative variables with lots of levels, they are good when you cannot use a bar graph, they are good for seeing trends. It still does not tell us what the range or uncertainty is.