ap biology - chi-square analysis & practice problems
originally streamed in 2019 with Caroline KoffkeTeachercovered in this stream
timestamps
- 0:00
Introduction to Chi-Square
- 1:01
Purpose in Genetics
- 2:03
Equations Overview
- 3:05
Key Vocabulary
- 4:09
Null Hypothesis
- 5:10
Degrees of Freedom
- 6:13
Critical Value Explanation
- 7:48
Rejecting Null Hypothesis
- 8:51
Remembering with Analogy
- 10:26
Alternative Thinking Method
- 12:01
Practice Problems Start
- 13:04
Guinea Pig Punnett Square
- 14:05
Phenotypes and Freedom
- 15:38
Expected Values Calculation
- 17:13
Null Hypothesis Setup
- 18:16
Formula Application Steps
- 20:24
Summing Chi-Square
- 21:56
P-Value and Confidence
- 23:28
Reject Null Conclusion
- 25:01
Cat Cross Example
- 26:34
Observed Cat Data
- 28:08
Cat Calculations
- 30:16
Accept Null for Cats
- 31:19
Wolf Dihybrid Cross
- 33:21
Wolf Punnett Results
- 34:56
Wolf Observed Values
- 36:31
Wolf Chi-Square
- 37:03
Reject Null for Wolves
- 38:06
Beetle Traits Setup
- 39:08
F2 Generation Ratio
- 40:10
Beetle Expected Values
- 41:43
Beetle Chi-Square
- 42:16
Accept Null for Beetles
- 42:46
Session Wrap-Up
- 43:17
Final Thoughts
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