Useful tips for everyday
What kind of experiment is a binomial distribution? A single success/failure test is also called a Bernoulli trial or Bernoulli experiment, and a series of…
What is the purpose of a univariate linear regression? Univariate linear regression focuses on determining relationship between one independent (explanatory variable) variable and one dependent…
What does it mean when the distribution of data is skewed to the right? A right-skewed distribution has a long right tail. Right-skewed distributions are…
How do you find the p-value for a significance test? If your test statistic is positive, first find the probability that Z is greater than…
How is a generalized additive model used in statistics? Generalized additive model. Jump to navigation Jump to search. In statistics, a generalized additive model (GAM)…
What is the PDF of a Gaussian random variable? A complex random variable Z = X + jY is a pair of real random variables…
What is a parameter estimate in logistic regression? Parameter estimates (also called coefficients) are the log odds ratio associated with a one-unit change of the…
What is lognormal distribution used for? The lognormal distribution is used to describe load variables, whereas the normal distribution is used to describe resistance variables.…
Why the sum of the residuals will always be equal to zero? Hence, the residuals always sum to zero when an intercept is included in…
How can you tell the difference between AR and ARMA? Difference Between an ARMA model and ARIMA In fact, the AR and MA components are…