ap statistics - normal distribution & z-scores
originally streamed in 2019 with Josh ArgoTeachercurriculum note
This video references the 2020 AP Statistics exam format, which had modified time constraints and calculator restrictions due to COVID-19. The current exam format and calculator policy may differ.
covered in this stream
timestamps
- 0:00
Importance of Normal Distribution
- 0:31
Percentiles and Normal Curve
- 1:34
Empirical Rule Explanation
- 2:36
Checking for Outliers
- 3:39
IQ Scores Example
- 4:42
Standard Normal Curve
- 5:44
Z-Scores Introduction
- 6:15
Comparing ACT and SAT
- 7:48
Interpreting Z-Scores
- 8:50
Z-Score Formula
- 9:54
Grades Comparison Example
- 12:35
Determining Better Performance
- 13:37
Calculating Probabilities
- 14:39
Lego Weight Probability
- 17:21
Using Z-Score Table
- 19:30
Calculator NormalCDF Method
- 24:55
Sampling Distributions Overview
- 26:27
Proportions and Means Formulas
- 29:02
Sampling Distribution Explanation
- 31:09
Lego Sample Probability
- 34:20
Standard Deviation in Sampling
- 37:37
Voting Poll Proportions Example
- 39:41
Probability Calculation for Proportions
- 40:43
Normal Curve in Inference
- 42:16
Balloons House Lifting Example
- 43:49
Normal Condition Importance
- 45:23
Study Randomization Issue
- 47:58
P-Value Interpretation
- 49:33
Rejecting Null Hypothesis
- 50:34
Final Thoughts and Q&A
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