Useful tips for everyday
Is cross-validation A regularization method? Regularization is a way of avoiding overfit by restricting the magnitude of model coefficients (or in deep learning, node weights).…
Are Z scores percentages? The area percentage (proportion, probability) calculated using a z-score will be a decimal value between 0 and 1, and will appear…
Can P values be applied to correlation? The P-value is the probability that you would have found the current result if the correlation coefficient were…
What is meant by categorical data analysis? Categorical data analysis is the analysis of data where the response variable has been grouped into a set…
What happens to the variability of a t-distribution as the sample size increases? As the sample sizes increase, the variability of each sampling distribution decreases…
What is predict value? Y hat (written ŷ ) is the predicted value of y (the dependent variable) in a regression equation. It can also…
What is the difference between binomial random variable and a negative binomial random variable? Binomial distribution describes the number of successes k achieved in n…
What is the SIG value in SPSS? Sig. – This is the two-tailed p-value associated with the null that the two groups have the same…
When to use a quasibinomial model in R? When the response variable is a proportion (example values include 0.23, 0.11, 0.78, 0.98), a quasibinomial model…
Does gradient boosting use shallower trees than random forest? As we can see, the trees that are built using gradient boosting are shallower than those…