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4: Statistics & Probability
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Data, Statistics & Regression

Data, Statistics & Regression

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Timeline

DATA & SAMPLES

Population

00:40

Types of Variables

02:36

Sampling Error

04:50

Measurement Error

08:02

Coverage Error

08:50

Non-response error

10:22

Exercise

12:55

Random sampling

13:38

Convenience sampling

15:02

Systematic sampling

15:49

Stratified random sampling

17:04

Quota sampling

18:35

Exercise

19:10

MEASURES

Mean

19:35

Exercise

20:40

Mode

21:00

Exercise

21:25

Median

21:46

Exercise

23:17

Variance & SD on Calculator (Sx vs σ)

23:40

Exercise

29:08

Exercise

30:20

Constant changes to data

32:30

Exercise

36:33

VISUALS

Quartiles

40:24

Interquartile Range & Outliers

42:59

Box & Whisker Plots

45:07

Exercise

46:29

Problem

48:04

Discrete Frequency Tables

55:08

Grouped Frequency Tables

58:48

Exercise

1:00:39

Histograms

1:02:20

Exercise

1:03:15

Problem

1:03:45

Cumulative frequency graphs and tables

1:08:22

Median, quartiles & percentiles on CF Graphs

1:11:04

Exercise

1:12:17

Problem

1:13:57

REGRESSION

Regression line y on x

1:20:31

Pearson's Product-Moment Correlation Coefficient

1:23:27

Predicting y from x

1:26:30

Danger of extrapolation

1:27:02

Exercise

1:28:37

Limitations of predicting x from y

1:29:47

Exercise

1:30:52

Problem

1:31:56

Problem

1:37:06

Plotting approximate best fit line

1:40:28

Exercise

1:41:03

Regression line x on y

1:42:04

Finding variance by hand

1:45:57

Data & SamplesMeasuresVisualsRegression

The video will automatically pause when it reaches a problem.

Data & SamplesMeasuresVisualsRegression