Useful tips for everyday
What is non-parametric bootstrapping? The non-parametric Bootstrap is used to estimate a parameter or parameters of a population or probability distribution from a set of…
What are the functions of models? Essential Functions for Mathematical Modeling. Mathematical models are used to explain systems, study effects of components, and make predictions…
Is exploratory data analysis Good? EDA is primarily used to see what data can reveal beyond the formal modeling or hypothesis testing task and provides…
Can you change your hypothesis to fit your data? Upon analysis of the results, a hypothesis can be rejected or modified, but it can never…
What is irregular time series? The irregular component of a time series is the residual time series after the trend-cycle and the seasonal components (including…
What is the mode of the distribution? The mode is the value which occurs most frequently in a data set. The mode is only of…
How are weights used in data analysis? In order to make sure that you have a representative sample, you could add a little more “weight”…
What does the characteristic polynomial tell you? In linear algebra, the characteristic polynomial of a square matrix is a polynomial which is invariant under matrix…
What Happens When assumption of sphericity is violated? The violation of sphericity occurs when it is not the case that the variances of the differences…
What does it mean to say that something is marginal? Use the word marginal when something is minimal or barely enough. These are the figurative…