This course is designed to help users gain an understanding of Data, learn about different types and attributes of data, and help them understand why this information is important in the world today. Includes two videos (25 min....

Calculating the standard deviation of residuals (or root-mean-square error (RMSD) or root-mean-square deviation (RMSD)) to measure disagreement between a linear regression model and a set of data.

This lesson shows how charts can be used to determine and list Z-scores.

This lesson shows how charts can be used to determine and list Z-scores.

This lesson shows how charts can be used to determine and list Z-scores.

In this lesson, students are introduced to Z-scores and their relevance to variance and distribution in data sets.

In this lesson, students are introduced to Z-scores and their relevance to variance and distribution in data sets.

This lesson will explain hypothesis testing when the population standard deviation (sigma) is known. It is 3 of 5 in the series.

Calculate z-statistic of a population mean. [9:44]

In this video, Paul Andersen explains the importance of standard deviation. He starts with a discussion of normal distribution and how the standard deviation measures the average distance from the mean, or the \"spread\" of data. He then...

Paul Andersen shows you how to calculate the standard error of a data set. He starts by explaining the purpose of standard error in representing the precision of the data. The standard error is based on the standard deviation and the...