Useful tips for everyday
How do you adjust for multicollinearity? How to Deal with Multicollinearity Remove some of the highly correlated independent variables. Linearly combine the independent variables, such…
What is the variance for a Poisson distribution? Poisson Distribution Notation Poisson ( λ ) Pdf λ k e − λ k ! Cdf ∑…
What is the factor score? A factor score is a numerical value that indicates a person’s relative spacing or standing on a latent factor. In…
How do you calculate Q1 and Q3? The formula for quartiles is given by: Lower Quartile (Q1) = (N+1) * 1 / 4. Middle Quartile…
What is sigma in confidence interval? Confidence Interval for a Mean With a Known Sigma Assume that you know the value of the population standard…
How do you fit a Weibull distribution in Matlab? Create a WeibullDistribution probability distribution object by fitting the distribution to data using the fitdist function…
How do you know if X and Y are independent random variables? Intuitively, two random variables X and Y are independent if knowing the value…
How do you calculate 95% odds of CI? The following formula is used for a 95% confidence interval (CI). Upper 95% CI = e ^…
Does historical performance predict future performance? Carhart’s classic analysis, titled “On Persistence in Mutual Fund Performance,” called into question the standard disclaimer that past performance…
What is endogeneity time series? The endogeneity problem is particularly relevant in the context of time series analysis of causal processes. It is common for…