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View Resource Pictoral Representation of Kendall's Rank Correlation Coefficient

This article explains the method of determining Kendall's Rank correlation coefficient, z, by drawing lines between corresponding points in the two rankings.
View Resource Deriving Regression Lines Without Calculus

This article describes a method to calculate the least squares line algebraically. First, the author uses a numeric example, which uses calculus, then describes a simpler algebraic method.
View Resource An Alternative Approach to the Mean

This article describes an alternate calculation of expected value, which illustrates continuous random variables.
View Resource Minimize Your Losses

This article presents an activity, which may be presented as a game in the classroom, to students on both secondary school and college levels by introducing the averages via the idea of the least combined error.
View Resource Hypothesis Testing and Proof by Contradiction: An Analogy

The "proof by contradiction" in mathematics, provides a reasonable parallel to the concept of hypothesis testing and in the process helps students see the fallacy of believing that the null hypothesis, H0, is true when they have simply failed to reject it.
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