September 7, 2020
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Correlation: Introduction to Relationships
In the last lesson, you learned about the Two-way Chi-square Test for Independence. Using it, you can determine if two categorical variables are independent. If
September 6, 2020
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Correlation and Chi-square Tests for Independence
The word “correlate” has several meanings, e.g. “If two or more facts, numbers, etc. correlate or are correlated, there is a relationship between them” (Cambridge
December 1, 2019
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Empirical Rule and z-score Probability
Empirical Rule The Empirical Rule applies to a normal, bell-shaped curve than is symmetrical about the mean. It states that within one standard deviation of the
September 29, 2019
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Proportions
Two-sample Difference Between Proportions Z-test
Problem https://youtu.be/_SvoDf7Toi4 https://youtu.be/XWLsrGtLfAo
August 12, 2019
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confidence interval
July 28, 2019
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