CAS MA 113 Lecture Notes - Lecture 6: Bar Chart, Redone, Contingency Table
12 Feb 2018
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Cas ma 113- lecture 6 notes- tabulating and graphing categorical data. Side-by-side chart: a bar chart that displays data bars from multiple sources side by side in various pre-determined categories, the bars are color coded according to a legend next to the graph. Their investments are listed below in a simple table. . 0: a direct side-by-side chart of this data would look like this: The answer would appear to be investor b, since the bars for that investor are highest (indicating more money invested), but this graph is incorrect. Important note: this graph is misleading, since each investor has a different amount of money in total. The graph must be redone, graphing the percentage of total money invested into each category by each investor. Savings: by comparing percentage of total money invested, there is a true comparison that can give reliable statistics.
