Khan Academy

Calculating t statistic for slope of regression line (K-A)

Conditions for inference on slope (K-A)

Confidence interval for the slope of a regression line (K-A)

Introduction to inference about slope in linear regression (K-A)

Using a confidence interval to test slope (K-A)

Comparing models to fit data example (K-A)

Using a P-value to make conclusions in a test about slope (K-A)

Transforming nonlinear data (K-A)

Worked example of linear regression using transformed data (K-A)

ANOVA 1: Calculating SST (total sum of squares) (K-A)

ANOVA 2: Calculating SSW and SSB (total sum of squares within and between) (K-A)

ANOVA 3: Hypothesis test with F-statistic (K-A)

Proof of the law of cosines (K-A)

Solving for a side with the law of cosines (K-A)

Solving for an angle with the law of cosines (K-A)

Proof of the law of sines (K-A)

Solving for a side with the law of sines (K-A)

Solving for an angle with the law of sines (K-A)

Laws of sines and cosines review (K-A)

Trig word problem: stars (K-A)

Intro to the Pythagorean trig identity (K-A)

Hypotenuse, opposite, and adjacent (K-A)

Intro to the trigonometric ratios (K-A)

Trigonometric ratios in right triangles-link (K-A)

Trigonometric ratios in right triangles-video (K-A)