Quantitative Methods

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 Dictionary, n.d.) And “to show that a close connection exists between (two or more things)” (Merriam-Webster, 2019)  Also, “to show that two things are connected.” (Macmillan, n.d.) In statistics, we often …

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“Easy” Excel Inverse Triangular Distribution for Monte Carlo Simulations Redux

Back in the dark ages when access to computers was not all that common, I was faced with developing a project schedule for, to me, a complex construction project. I was not that long out of school, so I sought out my boss with the hope he would give me some guidance on how to …

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Plotting lines given points and equations

If you need to find the equation of a line or its plot and you are given just two points, e.g. (5,5)(9,9), the best way to get the right answer is to use the WolframAlpha calculator at this page: https://www.wolframalpha.com/input/?i=line+through+(5,5)+and+(9,9) If you are given the equation of a line and you need to plot it, …

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