A t-test is designed to test a null hypothesis by determining if two sets of data are significantly different from one another, while a chi-squared test tests the null hypothesis by finding out if there is a relationship... More » Math Statistics

A basic hypothesis test measures the outcome of a probability function or equation for the validity of an expected or returned result. Typically, a basic hypothesis test uses accumulated data points as the basis for reje... More » Math Statistics

Chi-square is a statistical test that detects whether an observed set of sample results are obtained by mere chance, or whether something other than chance is causing the data to vary. If the observed results sufficientl... More » Math Statistics
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A parametric test is used on parametric data, while non-parametric data is examined with a non-parametric test. Parametric data is data that clusters around a particular point, with fewer outliers as the distance from th... More » Math Statistics

A scatter plot is a mathematical diagram showing the relationship between two sets of data. Individual points are positioned according to the variables assigned to the vertical and horizontal axis. More » Math Data Graphs

The T-test is a statistical test that measures the significance of the difference between the means in two sets of data in relation to the variance of the data. More » Health Diagnostics & Imaging

In mathematics, a ratio illustrates the relationship between two things, often quantities, while a proportion refers to the equality of two given ratios. A ratio is generally only an expression, while a proportion can be... More » Math Statistics