The Measure Of Central Tendency Essay

786 Words Jul 1st, 2015 4 Pages
Two campaigns have collected data and determined their response rates in percentages in five different mailing zones. Each campaign sent mail to the same zones but their results where different. In order to find out which campaign performed at a higher level the central tendency and the variability of the responses must be examined. After an examination it is clear that one campaign outperformed the other. But, with these results comes some questions about how and why these campaigns performed at such different rates. This small look at campaign rates is just a quick interpretation of basic statistics.
Measures of Central Tendency There are three forms of central tendency’s which are used to describe the center set of the data. These forms are the mean, median and mode. The mean is also known as the average and is found by “summing the observations and dividing by the number of observations” (Keller, 2014, p.96). The mean for Campaign 1 is 1.82% found by the equation, [(1.4 + 0.9 + 0.4+ 5.3 + 1.1)/5]. Well the mean for Campaign 2 is 0.8% found by the equation, [(1.2 + 0.5 +1.0 + 0.7 + 0.6)/5]. The next measure that will need to be found is the median. This is computed by “placing all the observations in order (ascending or descending)” (Keller, 2014, p.98). The observation that is located in the middle of the data is the median. The median for Campaign 1 is 1.1% and Campaign 2 is 0.7%. The last measure that needs to be computed is the mode. The mode is the…

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