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**Unformatted text preview: **-A left-skewed graph is considered a “negative skew” Ch 3.1 I. Measures of Central Location A. Mean 1. The average of data from the sample/population 2. Indicates the central tendency 3. Outliers can skew the data, meaning the mean can be shifted from the central tendency B. Weighted Mean 1. Used when some data points are more important than others 2. How to do it a) Decimilize the percentages b) Multiply (values)(the weighted percentage) c) Add up the products to get the final result C. Median 1. The data that lies in the middle of the sample/population 2. Data has to be sorted from lowest to highest 3. If there are two middle values, take their average and that will be your median D. Mode 1. The number occurring the most in that data set 2. Used for qualitative data...

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- Fall '19
- Michael Ryan