This art history video discussion looks at Simone Martini's "Annunciation", 1333, tempera on panel (Uffizi, Florence).

This art history video discussion looks at Sir John Everett Millais' "Christ in the House of His Parents", 1849-50, oil on canvas (Tate Britain, London).

This art history video discussion looks at Sir John Everett Millais' "Ophelia", 1851-52, oil on canvas (Tate Britain, London).

This art history video discussion looks at Claus Sluter's (with Claus de Werve) "The Well of Moses", 1395-1405 (calvary finished 1399, prophets 1402-05, painted by Jean Malouel c. 1402), Asnières stone with gilding and polychromy, slightly less than 7 meters high, originally close to 13 meters with cross. Located on the grounds of the former Chartreuse de Champmol, a Carthusian monastery in Dijon, France established by Philip the Bold, Duke of Burgundy. The prophets depicted include: Moses, David, Jeremiah, Zachariah, Daniel, and Isaiah.

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.

Determining whether 3 vectors are linearly independent and/or span R3. Created by Sal Khan.

This art history video discussion examines the "Standard of Ur", c. 2600-2400 B.C.E. (British Museum).

This 8-minute video lesson provides analysis of variance 1: Calculating SST (Total Sum of Squares). [Statistics playlist: Lesson 75 of 85]

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 10-minute video lesson provies analysis of variance 3: Hypothesis test with F-statistic. [Statistics playlist: Lesson 77 of 85]

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 7-minute video lesson gives formulas for the Bernoulli Distribution Mean and Variance. [Statistics playlist: Lesson 42 of 85]

This 10-minute video lesson explains box and whisker plots. [Statistics playlist: Lesson 9 of 85]

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 6-minute video lesson uses problems from CK12.org to provide more Empirical Rule and Z-score practice. [Statistics playlist: Lesson 34 of 85]

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 how "normal" a distribution might be. [Statistics playlist: Lesson 30 of 85]

This 10-minute video lesson shows how to calculate R-squared to see how well a regression line fits the data. [Statistics playlist: Lesson 70 of 85]

This 10-minute video lesson introduces the chi-square distribution. [Statistics playlist: Lesson 72 of 85]

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]