Deviations from the mean from variance formula in excel Watch Video
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Description: This screencast is to assist in students understandinga mean and a deviation from the mean and the sum of squared devaitions from the mean. Also it gives two methods for calculating variance and standard deviations. It shows that Excel can be useful, and has the formula for sample variance and sample sd. Ultimately you only need to understand these concepts early in a statistics course. We move on very quickly to using statitsical software. My choice is R and R Studio.
Play Video: (Note: The default playback of the video is HD VERSION. If your browser is buffering the video slowly, please play the REGULAR MP4 VERSION or Open The Video below for better experience. Thank you!)