Video reviews the population and sample mean and variance then expands to population and sample standard deviation. Gives examples of calculating the standard deviation. [13:07]

Video showing how to determine the probability that the population mean is between two given values when given the mean and standard deviation of a sample. Uses sampling distribution and calculates a z-score in order to determine the...

Video gives example of using a t-distribution when a small sample size is given. Example includes how to use a t-table to create a confidence interval for the population mean. [11:11]

Video explains the relationship between expected value and population mean and provides an example of calculating expected value using frequencies. [14:53]

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.

Video first reviews sample and population mean and their notation. Gives example of how variance is a useful description of a set and shows how to calculate variance including notation. Includes link to practice problems. [12:23]

Sal Khan introduces the magic behind the law of large numbers. [8:59]

This lesson will explain the distinction between sample statistics and population parameters, with a review of sampling distributions. It is 2 of 4 in the series titled "Sample Statistics and Population Parameters."

This lesson will explain the distinction between sample statistics and population parameters, with a review of sampling distributions. It is 3 of 4 in the series titled "Sample Statistics and Population Parameters."

This lesson will explain the distinction between sample statistics and population parameters, with a review of sampling distributions. It is 4 of 4 in the series titled "Sample Statistics and Population Parameters."

This lesson will implement a t-test for a population mean to help determine if the average number of Facebook friends of high school account users is greater than the national average of 234 friends. Student watch a video tutorial.

This lesson will implement a z-test for a population mean to help determine if adults in Minneapolis are exercise more than the national average, which is 2 hours per week. Student watch a video tutorial.