Useful tips for everyday
What is the alternative for null statement? The Null and Alternative Hypotheses There are two hypotheses that are made: the null hypothesis, denoted H0, and…
How is Bayes estimate calculated? Call a * (x) the point where we reach the minimum expected loss. Then, for a*(x) = δ*(x), δ*(x) is…
How does artificial neurons learn? Neural networks generally perform supervised learning tasks, building knowledge from data sets where the right answer is provided in advance.…
Can a binary dependent variable be used in regression? Yes you can! In your case, you’re talking about a binary dependent variable because it has…
What is the probability that the three segments can form a triangle? Therefore, we can conclude there is a 1/4 probability that the three broken…
Do confidence intervals account for bias? It is important to note that 95% confidence intervals only address random error, and do not take into account…
How does kde2d calculate 2 dimensional kernel density? The function creates a grid from min (a) to max (a) and from min (b) to max…
How to calculate the product of probability density functions? That gives us two probability densities r f ( r x) and r g ( r…
How can I make my ARIMA more accurate? 1- Check again the stationarity of the time series using augmented Dickey-Fuller (ADF) test. 2- Try to…
What statistical test should be used to compare two groups of frequencies or proportions? Chi-square test of independence For more than two groups, test for…