Find a confidence interval for variance and standard deviation

These videos were made in the classroom. They are review videos for my students. They go fast and are made for watching. If you insist on taking notes pause the video or watch it at half speed. To activate half speed click the icon in the lower right of the view screen. I am using an iPad and the doceri app.

[CDEfreak]

….and if no sample was taken? How do you proceed without a sample variance. Sample size and confidence % only.

[roxanaflores]

thankyou but thankyou for this video it honestly made it much easier for me to understand .... i wish you were my stats professor