Useful tips for everyday
When should I use GARCH model? GARCH is a statistical model that can be used to analyze a number of different types of financial data,…
How is the goodness of fit test determined? There are multiple methods for determining goodness-of-fit. Some of the most popular methods used in statistics include…
How is a boosting model trained? In some cases, boosting models are trained with an specific fixed weight for each learner (called learning rate) and…
What is the median of gamma distribution? Let n ≥ 0 be an integer and be a random variable having the Γ ( n +…
How many respondents do I need for a survey? All you have to do is take the number of respondents you need, divide by your…
What is a covariance structure? Covariance Structures are just patterns in covariance matrices. Some of these patterns occur often enough in some statistical procedures that…
When to use bootstrap to resample residuals? When it is appropriate, the process of resampling residuals offers a way to use the bootstrap to investigate…
Which is an example of a sufficiently sufficient statistic? For example, for a Gaussian distribution with unknown mean and variance, the jointly sufficient statistic, from…
What makes a neural network non linear? A Neural Network has got non linear activation layers which is what gives the Neural Network a non…
What is the difference between distribution and density? Population density just represents the average number of individuals per unit of area or volume. Population distribution…