Sal solves a linear system with 3 variables by representing it with …
Sal solves a linear system with 3 variables by representing it with an augmented matrix and bringing the matrix to reduced row-echelon form. Gaussian Elimination is the method, reduced row echelon is just the final result.
This 13-minute video lesson provides analysis of variance 2: Calculating SSW and …
This 13-minute video lesson provides analysis of variance 2: Calculating SSW and SSB (total sum of squares within and between). [Statistics playlist: Lesson 76 of 85]
This 12-minute video lesson plays with the formula for variance of a …
This 12-minute video lesson plays with the formula for variance of a population. And looks at alternate variance formulas. [Statistics playlist: Lesson 16 of 85]
This 8-minute video lesson takes problems from CK12.org to discuss using the …
This 8-minute video lesson takes problems from CK12.org to discuss using the Empirical Rule with a standard normal distribution. [Statistics playlist: Lesson 33 of 85]
This 10-minute video lesson takes some problems from CK12.org and uses the …
This 10-minute video lesson takes some problems from CK12.org and uses the empirical rule (or 68-95-99.7 rule) to estimate probabilities for normal distributions. [Statistics playlist: Lesson 32 of 85]
This 11-minute video lesson takes some problems from CK12.org and discusses of …
This 11-minute video lesson takes some problems from CK12.org and discusses of how "normal" a distribution might be. [Statistics playlist: Lesson 30 of 85]
This 3-minute video lesson provides clarification of the previous video on the …
This 3-minute video lesson provides clarification of the previous video on the confidence interval for difference of means. [Statistics playlist: Lesson 57 of 85]
This 14-minute video lesson shows how to estimate the probability that the …
This 14-minute video lesson shows how to estimate the probability that the true population mean lies within a range around a sample mean .[Statistics playlist: Lesson 40 of 85]
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