ap statistics - q&a: chi-squared, bayes & transformations
originally streamed in 2020 with Bob AmarTeachercurriculum note
This video was recorded during the COVID-19 modified exam period, when certain topics (chi-squared, linear transformations) were excluded from that year's AP Statistics exam. The instructor's comments that these topics are 'not on this year's exam' are outdated — all topics discussed are fully tested on the current AP Statistics exam.
covered in this stream
timestamps
- 0:00
Q&A Session
- 0:33
Chi-Squared Basics
- 1:04
Jelly Beans Example
- 2:07
Expected Counts Calculation
- 3:10
Goodness of Fit Test
- 3:44
Test Statistic Formula
- 4:48
Contributions Calculation
- 5:49
Degrees of Freedom
- 7:51
Matched Pairs vs Means
- 8:55
Independent Samples
- 9:59
Two-Sample T-Test
- 10:31
Matched Pairs Design
- 11:31
Amusement Park Example
- 13:08
Paired T-Test Analysis
- 14:41
Bayes Theorem Question
- 15:46
Conditional Probability
- 18:33
Bayes Theorem Derivation
- 20:38
Drug Test Example
- 22:41
Total Probability Expansion
- 24:44
Rare Conditions Issue
- 25:48
Linear Transformations
- 26:50
Residual Plots
- 29:55
Scatter Plot Analysis
- 31:30
Quadratic Model Try
- 33:36
Log Transformation
- 36:56
Undoing Transformation
- 39:28
Power Law Model
- 42:41
Writing Responses Tips
- 47:08
Free Response Example
- 49:28
Population Generalization
- 51:33
Mean vs Median Disadvantage
- 54:43
Session Closing
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