POL242Y5 Lecture Notes - Lecture 10: Data Visualization, Standard Deviation, Descriptive Statistics
28 Sep 2020
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Pol242 june 5: descriptive statistics: visualization and interpretation. Provides handy way to summarize data and shows how data is distributed, where most people are situated, etc. We will follow two type of statistics: descriptive statistics and inferential statistics. Inferential statistics draw inferences to a larger population. It is a straightforward way to understand how the observations are spread over possible values. If you ask your classmate what your popularity score is, you can meaningfully represent all of this information by: Finding out your highest and lowest popularity score (which is 18 and 30), recode all scores from highest to lowest or lowest to highest order. Then tally every time a score is shown for a certain number and count the number of tallies to find the (f) frequency with each score. If you have large data/number of observations it is likely that your data would have curves but not all distributions are symmetric or normal.
