## A Refresher on Regression Analysis

You probably know by now that whenever possible you should be making data-driven decisions at work. In any case, do you realize how to...

## Game Theory

Game theory is the science of strategy. It attempts to determine mathematically and logically the actions that “players” should take to secure the best...

## Calculus Fundamentals

Understand the mathematics of continuous change. Calculus is the mathematical study of things that change: cars accelerating, planets moving around the sun, economies fluctuating....

## Statistics How To

The z-table is short for the “Standard Normal z-table”. The Standard Normal model is used in hypothesis testing, including tests on proportions and on...

## Standard Score (cont…)

Z-scores are expressed in terms of standard deviations from their means. Resultantly, these z-scores have a distribution with a mean of 0 and a...

## What is the variance

The variance is one of the measures of dispersion which is a measure of how much the values in the data set may differ...

## What Does PEMDAS Mean?

PEMDAS is an acronym for the words parenthesis, exponents, multiplication, division, addition, subtraction. Given at least two operations in an equation, the order of...

## Binomial Theorem

EXPLORING THIS TOPO IN THE MathWorld classroom We have several closely related results that are variously known as the binomial theorem according to the...

## Box plot

In descriptive statistics, a box plot or boxplot is a method for graphically depicting groups of numerical data through their quartiles. Box plots may...

## Critical Values of the Chi-Square Distribution

This table contains the basic estimations of the chi-square circulation. On account of the absence of balance of the chi-square appropriation, separate tables are...