From the course: Complete Guide to Excel Statistics with Copilot

Unlock this course with a free trial

Join today to access over 24,600 courses taught by industry experts.

Skewness and kurtosis

Skewness and kurtosis

- [Instructor] Mean, median, mode, even standard deviation. In most cases, these words sound pretty familiar, even for those of us that are new to statistics. But how about skewness and kurtosis? Those might be new concepts for most of you. So, let's see how these two statistical concepts can be useful in trying to understand our dataset. As we've already discussed, in nature, data often takes the shape of the normal curve, a curve that is symmetrical on each side of the mean, a curve where the mean, the median, and the mode are identical. And the normal curve is often presented as being centered at a mean of zero and having a standard deviation of one. Also, as has been discussed earlier in this course, in nature, datasets for a population, they very often reflect the normal distribution. Many population datasets look very much like the normal curve. All this being said, our sample datasets and sometimes even a population dataset, they may not perfectly fit the normal distribution…

Contents