Khan Academy
7,713 videos, +5,400,000 subscribers

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name
timeviews
Lifecycle of Massive Stars6:410
Sal on ABC News2:3101 list
Number sets 1 | Fractions | Pre-Algebra | Khan Academy6:1701 list
Applying rational equations 1 | Polynomial and rational functions | Algebra II | Khan Academy5:2601 list
Adding and Subtracting Rational Expressions 13:6001 list
Simplifying rational expressions 1 | Polynomial and rational functions | Algebra II | Khan Academy4:1201 list
Applying Quadratic Functions 36:4601 list
Example 3: Finding the square of a binomial with two variables | Algebra I | Khan Academy5:1201 list
Multiplying Polynomials14:3301 list
Example 1: Modeling with polynomials | Algebra I | Khan Academy4:3701 list
Simplifying a cube root | Exponents, radicals, and scientific notation | Pre-Algebra | Khan Academy2:3701 list
Fractional exponent expressions 3 | Exponent expressions and equations | Algebra I | Khan Academy6:3201 list
Hubble's Law11:120
Parsec Definition7:340
Stellar Parallax Clarification2:220
Stellar Distance Using Parallax11:400
Parallax in Observing Stars7:220
Star Field and Nebula Images7:400
White and Black Dwarfs12:540
Becoming a Red Giant11:300
Birth of Stars7:580
Cosmic Background Radiation 210:160
Cosmic Background Radiation11:360
Four Fundamental Forces10:300
Cosmological Time Scale 26:180
Cosmological Time Scale 17:700
Red Shift10:400
A Universe Smaller than the Observable8:580
Cosmic Microwave Background Radiation 27:170
Cosmic Microwave Background Radiation12:160
(Correction) Radius of Observable Universe2:150
Radius of Observable Universe16:390
Big Bang Introduction11:300
Hubble Image of Galaxies4:120
Intergalactic Scale10:500
Scale of the Galaxy12:550
Scale of Earth and Sun9:310
Scale of Distance to Closest Stars8:180
Scale of Solar System12:310
ANOVA 3: Hypothesis test with F-statistic | Probability and Statistics | Khan Academy10:140
ANOVA 2: Calculating SSW and SSB (total sum of squares within and between) | Khan Academy13:200
ANOVA 1: Calculating SST (total sum of squares) | Probability and Statistics | Khan Academy7:390
Contingency table chi-square test | Probability and Statistics | Khan Academy17:380
Pearson's chi square test (goodness of fit) | Probability and Statistics | Khan Academy11:480
Chi-square distribution introduction | Probability and Statistics | Khan Academy10:230
Regression Notation Clarification10:200
Covariance and the regression line | Regression | Probability and Statistics | Khan Academy15:800
Calculating R-squared | Regression | Probability and Statistics | Khan Academy9:450
Second regression example | Regression | Probability and Statistics | Khan Academy9:150
R-squared or coefficient of determination | Regression | Probability and Statistics | Khan Academy12:410
Regression line example | Regression | Probability and Statistics | Khan Academy9:270
Proof (part 4) minimizing squared error to regression line | Khan Academy4:180
Proof (part 3) minimizing squared error to regression line | Khan Academy10:540
Proof (part 2) minimizing squared error to regression line | Khan Academy9:540
Proof (part 1) minimizing squared error to regression line | Khan Academy10:350
Squared error of regression line | Regression | Probability and Statistics | Khan Academy6:470
Hypothesis test comparing population proportions | Probability and Statistics | Khan Academy16:130
Comparing population proportions 2 | Probability and Statistics | Khan Academy10:100
Comparing population proportions 1 | Probability and Statistics | Khan Academy10:470
Hypothesis test for difference of means | Probability and Statistics | Khan Academy10:700
Clarification of confidence interval of difference of means | Khan Academy2:420
Confidence interval of difference of means | Probability and Statistics | Khan Academy15:490
Difference of sample means distribution | Probability and Statistics | Khan Academy12:180
Variance of differences of random variables | Probability and Statistics | Khan Academy10:470
Large sample proportion hypothesis testing | Probability and Statistics | Khan Academy14:310
T-statistic confidence interval | Inferential statistics | Probability and Statistics | Khan Academy11:470
Small sample hypothesis test | Inferential statistics | Probability and Statistics | Khan Academy9:400
Type 1 errors | Inferential statistics | Probability and Statistics | Khan Academy3:240
Z-statistics vs. T-statistics | Inferential statistics | Probability and Statistics | Khan Academy6:400
One-tailed and two-tailed tests | Inferential statistics | Probability and Statistics | Khan Academy6:340
Hypothesis testing and p-values | Inferential statistics | Probability and Statistics | Khan Academy11:270
Small sample size confidence intervals | Probability and Statistics | Khan Academy11:110
Confidence interval example | Inferential statistics | Probability and Statistics | Khan Academy18:360
Margin of error 2 | Inferential statistics | Probability and Statistics | Khan Academy10:500
Margin of error 1 | Inferential statistics | Probability and Statistics | Khan Academy15:300
Bernoulli distribution mean and variance formulas | Probability and Statistics | Khan Academy6:590
Mean and variance of Bernoulli distribution example | Probability and Statistics | Khan Academy8:200
Confidence interval 1 | Inferential statistics | Probability and Statistics | Khan Academy14:300
Sampling distribution example problem | Probability and Statistics | Khan Academy14:280
Debt Loops Rationale and Effects12:2401 list
American-Chinese Debt Loop15:2701 list
Chinese Central Bank Buying Treasuries12:1001 list
Pegging the Yuan6:5201 list
Currency Effect on Trade Review10:6001 list
Currency Effect on Trade14:2001 list
Currency Exchange Introduction12:4001 list
Aldol Reaction11:410
Khan Academy on the Gates Notes2:2201 list
Amide Formation from Acyl Chloride9:100
Relative Stability of Amides Esters Anhydrides and Acyl Chlorides11:900
Amides, Anhydrides, Esters and Acyl Chlorides8:490
Acid Chloride Formation11:490
Fisher Esterification17:120
Carboxylic Acid Naming5:260
Carboxlic Acid Introduction8:510
Keto Enol Tautomerization8:300
Friedel Crafts Acylation Addendum0:500
Friedel Crafts Acylation11:180
Ketone Naming8:440
Aldehyde Introduction7:490

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