Useful tips for everyday
Are there any alternatives to logistic regression in data science? A wide range of alternatives are available, from statistics-based procedures (e.g. log binomial, ordinary or…
Does a Q-Q plot show outliers? A Q-Q plot is a graphic method for testing whether a dataset follows a given distribution, but it may…
When can collaborative filtering be used? Most websites like Amazon, YouTube, and Netflix use collaborative filtering as a part of their sophisticated recommendation systems. You…
How is MAD calculated? Calculate Mean Absolute Deviation (M.A.D) To find the mean absolute deviation of the data, start by finding the mean of the…
What is the smallest bootstrap mean possible? i read hair et al (2018) page 760 : “Bootstrap samples The number of samples drawn when the…
What is interval estimation with example? An interval is a range of values for a statistic. For example, you might think that the mean of…
What does R and R-squared mean in regression? Simply put, R is the correlation between the predicted values and the observed values of Y. R…
How are studentized residuals related to the residual distribution? Breaks near the middle of this graph are also indications of abnormalities in the residual distribution.…
How do you normalize data with zero? You can determine the mean of the signal, and just subtract that value from all the entries. That…
What are the requirements for Poisson distribution? Conditions for Poisson Distribution: An event can occur any number of times during a time period. Events occur…