Khan Academy

Khan Academy

Statistics

Introduction to statistics. Will eventually cover all of the major topics in a first-year statistics course (not there yet!)

1. Statistics: The Average
2. Statistics: Sample vs. Population Mean
3. Statistics: Variance of a Population
4. Statistics: Sample Variance
5. Statistics: Standard Deviation
6. Statistics: Alternate Variance Formulas
7. Introduction to Random Variables
8. Probability Density Functions
9. Binomial Distribution 1
10. Binomial Distribution 2
11. Binomial Distribution 3
12. Binomial Distribution 4
13. Expected Value: E(X)
14. Expected Value of Binomial Distribution
15. Poisson Process 1
16. Poisson Process 2
17. Law of Large Numbers
18. Normal Distribution Excel Exercise
19. Introduction to the Normal Distribution
20. ck12.org Normal Distribution Problems: Qualitative sense of normal distributions
21. ck12.org Normal Distribution Problems: z-score
22. ck12.org Normal Distribution Problems: Empirical Rule
23. ck12.org Exercise: Standard Normal Distribution and the Empirical Rule
24. ck12.org: More Empirical Rule and Z-score practice
25. Central Limit Theorem
26. Sampling Distribution of the Sample Mean
27. Sampling Distribution of the Sample Mean 2
28. Standard Error of the Mean
29. Sampling Distribution Example Problem
30. Confidence Interval 1
31. Mean and Variance of Bernoulli Distribution Example
32. Bernoulli Distribution Mean and Variance Formulas
33. Margin of Error 1
34. Margin of Error 2
35. Confidence Interval Example
36. Small Sample Size Confidence Intervals
37. Hypothesis Testing and P-values
38. One-Tailed and Two-Tailed Tests
39. Z-statistics vs. T-statistics
40. Type 1 Errors
41. Small Sample Hypothesis Test
42. T-Statistic Confidence Interval
43. Large Sample Proportion Hypothesis Testing
44. Variance of Differences of Random Variables
45. Difference of Sample Means Distribution
46. Confidence Interval of Difference of Means
47. Clarification of Confidence Interval of Difference of Means
48. Hypothesis Test for Difference of Means
49. Comparing Population Proportions 1
50. Comparing Population Proportions 2
51. Hypothesis Test Comparing Population Proportions
52. Squared Error of Regression Line
53. Proof (Part 1) Minimizing Squared Error to Regression Line
54. Proof (Part 3) Minimizing Squared Error to Regression Line
55. Proof (Part 4) Minimizing Squared Error to Regression Line
56. Regression Line Example
57. Proof Part 2 Minimizing Squared Error to Line
58. R-Squared or Coefficient of Determination
59. Second Regression Example
60. Calculating R-Squared
61. Covariance and the Regression Line
62. Chi-Square Distribution Introduction
63. Pearson's Chi Square Test (Goodness of Fit)
64. Contingency Table Chi-Square Test
65. ANOVA 1 - Calculating SST (Total Sum of Squares)
66. ANOVA 2 - Calculating SSW and SSB (Total Sum of Squares Within and Between).avi
67. ANOVA 3 -Hypothesis Test with F-Statistic

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