Here's a better-quality, more detailed update for this video: https://youtu.be/n_sSVhHBdj4
In this video I cover descriptive statistics and three measures of central tendency; the mean, median, and mode. The calculation of each is explained, as well as potential problems, such as the mean's sensitivity to extreme scores, especially in small samples. I also discuss the possibility of multimodal and uniform distributions.
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*I should clarify the example of a multimodal distribution that I used, the scores of 90 and 84 should be out of a larger group of students (more than 10) with other scores also occurring. If 90 and 84 were both the most-frequent scores then they would both be modes. If 90 and 84 were the only scores and they occurred equally then this would be a uniform distribution. Sorry for any confusion!