SDS 306 Lecture Notes - Lecture 8: Interquartile Range, Quartile, Sigg
4 Feb 2017
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Document Summary
The 5-number summary provides a numerical description of the data. It consists of: minimum, first quartile (q1, median, third quartile (q3, maximum. A boxplot is a chart that displays the. The line inside the box shows the median. The whiskers show the minimum and maximum scores that are not outliers. Some boxplots display fences (dashed lines): the fences show the cutoffs for the outliers. Lower fence = q1 1. 5 iqr. Upper fence = q3 + 1. 5 iqr. Show mechanics: present the 5-number summaries of each cup type. Also, find the iqrs: construct four boxplots, one for each cup type, boxplots effectively compare the distributions. The individual cup types are slightly skewed left. Nissan is best for keeping the coffee hot typically losing only 2 . Sigg is the worst typically losing 14 . Over 75% of the nissan cups showed less heat loss than any of the other cup types.
