When estimating a proportion with a large sample size, a Normal distribution is a good approximation for the probability distribution for the possible values the estimated proportion could be. To fully specify the Normal distribution, we need its mean and standard deviation.
Download a SCORM package of the video with embedded quiz questions to deploy in a Learning Management System.
[This download requires a login. Name and password are available through this link.]
Stream the video without the embedded quiz questions by clicking on the video link below. Closed captions are available.
Notes on the video: The Mean and Variance of a Proportion