Useful tips for everyday
How is the decision boundary used in logistic regression? Our intention in logistic regression would be to decide on a proper fit to the decision…
Is L2 norm A Euclidean norm? The L2 norm calculates the distance of the vector coordinate from the origin of the vector space. As such,…
What does it mean to correlate residuals in SEM? It means that the unexplained variance from two variables are correlated. One way of thinking of…
How is a lognormal distribution different from a normal distribution? A log-normal distribution can be formed from a normal distribution using logarithmic mathematics. The continuous…
How do you prove that a sample is normally distributed? The statistic used to estimate the mean of a population, μ, is the sample mean,…
What is the difference between error term and residual term? The Difference Between Error Terms and Residuals In effect, while an error term represents the…
What are random and fixed effects? Fixed Effects model assumes that the individual specific effect is correlated to the independent variable. Random Effects model assumes…
What is the definition of multiple linear regression? This requires extending the simple linear regression model introduced in Chapter 11 to the case with multiple…
How is correlation different from regression? Correlation is a statistical measure that determines the association or co-relationship between two variables. Regression describes how to numerically…
What is the symbol for standardized statistic? Probability and statistics symbols table Symbol Symbol Name Meaning / definition σX standard deviation standard deviation value of…