In this video, we'll learn about the three measures of central tendency (that is, the mean, median, and mode). We'll learn formulas for the population mean and the sample mean as a way of getting used to the mathematical notation we use in statistics. Finally, we'll learn about how the three measures of central tendency are influenced by skew (e.g., outliers) in a dataset.
![](https://i.ytimg.com/vi/zC6e47l0tV4/maxresdefault.jpg)