Useful tips for everyday
Is uniform distribution in exponential family? Comments: (1) For an exponential family, the support of the distribution (i.e., ) cannot depend on . Thus, iid…
What is finite mean and variance? 1. Important point: if variance of a population is infinite, but variance of a sample is finite, then any…
Can you use standard error with median? Since the median is usually only used when the data are not drawn from a normally distributed population,…
How does F statistic affect p-value? The F value in one way ANOVA is a tool to help you answer the question “Is the variance…
In which conditions Kruskal-Wallis test is used? The Kruskal-Wallis H test (sometimes also called the “one-way ANOVA on ranks”) is a rank-based nonparametric test that…
What is acceptable covariance? The covariance should not be very small and it must be less than 0.85 between each pair of factors at the…
How do you calculate simple regression? To calculate the simple linear regression equation, let consider the two variable as dependent (x) and the the independent…
How do you derive Rayleigh distribution? We can take U 1 = σ Z 1 and U 2 = σ Z 2 where Z 1…
How did the Gaussian noise get its name? Gaussian noise, named after Carl Friedrich Gauss, is statistical noise having a probability density function (PDF) equal…
How do I make a spreadsheet accessible? Use accessible text color Ensure that the text displays well by using the Automatic setting for font colors.…