The statistics It is a branch of mathematics, which corresponds to the collection, analysis, interpretation, presentation and organization of data (se...
A nominal variable It is one that takes values that identify a class or category in which the objects of study are grouped. For example, the variabl...
The correlation coefficient in statistics it is an indicator that measures the tendency of two quantitative variables X and Y to have a linear or prop...
The coefficient of determination is a number between 0 and 1 that represents the fraction of points (X, Y) that follow the regression line of fit of a...
The standard error of estimate measures the deviation in a sample population value. That is, the standard error of estimation measures the possible va...
A permutation without repetition of n elements are the different groups of different elements that can be obtained by not repeating any element, only ...
The Weighted average or weighted arithmetic mean, is a measure of central tendency in which, at each value xi which can take a variable X, it is assig...
The tukey test is a method that aims to compare the individual means from an analysis of variance of several samples subjected to different treatments...
The homoscedasticity in a predictive statistical model it occurs if in all the data groups of one or more observations, the variance of the model with...
