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#### Mean is simply another name for average ➗

- Calculate mean by adding all of the numbers in a data set and divide by the number of data points in the set
- Example: to calculate the mean of 45, 72, 23, and 68, one would follow these steps:

1. Add the numbers: 45+72+23+68=208

2. Divide 208 by the number of data points (4): 208/4 = 52

3. Therefore, the mean of this data set is 52.

#### Mean can be used for a plethora of things, including: 📊

- Comparing Distributions
- Drawing a Standard Curve
- Constructing a Box and Whisker Plot
- Calculating a Percentile

When there is an outlier in a group of data, it **WILL AFFECT THE MEAN!**

*Adding or subtracting an outlier will result in a new mean.*