Instructional Video

Khan Academy: Why We Divide by N 1 for the Unbiased Sample Variance

Curated by ACT

This video is reviewing the population mean, sample mean, population variance, sample variance and building an intuition for why we divide by n-1 for the unbiased sample variance.

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Concepts
standard deviation, variance
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Additional Tags
population mean, population variance, sample mean, sample variance, unbiased sample variance, khan academy
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Resource Details
Grade
9th - 10th
Subjects
Math
2 more...
Resource Type
Instructional Videos
Audiences
For Administrator Use
2 more...
Lexile Measures
0L