MATH201 Lecture Notes - Lecture 4: Box Plot
25 Jul 2016
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Given the following set of data of the cost (dollars/day) for a random sample of condos in aspen during ski season, determine the following: 125 n = 20: compute the mean, median, and mode. Median: (125+125)/2 = (the exact center values of the data set) Mode: (appears the most in the data set: compute a 5% trimmed mean and compare it with the mean initially computed. 20 data points*5% = 1 = remove the highest and lowest data point from the set and re-compute the mean. Remove and from the data set. It is more accurate than the original mean because it is closer to the median and mode because it eliminates potential outliers: calculate and report the 5# summary and construct a box plot. Max: : calculate outliers and place them on box plot. Q1 = 92. 5 187. 5 = no outliers under q1. Anything greater than or equal to 405 is an outlier.
