Useful tips for everyday
What is the difference between t-test and Wald test? The only difference from the Wald test is that if we know the Yi’s are normally…
Why GLM fit algorithm did not converge? Unfortunately, the glm. fit warning: “algorithm did not converge and fitted probabilities numerically 0 or 1” appears. The…
How to reduce the RMSE of a model? @Manoj Dhake , it depends on the dependent variable. The unit of RMSE is same as dependent…
What does it mean if confidence interval is negative? If the lower endpoint of a confidence interval for a population percentage is negative, it is…
How do you calculate growth and decay rate? exponential growth or decay function is a function that grows or shrinks at a constant percent growth…
Which is better k fold or leave one out cross validation? K-fold cross-validation also offers a computational advantage over leave-one-out cross-validation (LOOCV) because it only…
When can a regression equation be used for predictions? You can use regression equations to make predictions. Regression equations are a crucial part of the…
What is Fisher exact test used for? Fisher’s exact test assesses the null hypothesis of independence applying hypergeometric distribution of the numbers in the cells…
How is an arc different from a circle? An arc of a circle is any portion of the circumference of a circle. To recall, the…
How do you standard deviation normalized? Normalized measures of spread are calculated by dividing a measure of spread (except the variance because it has squared…