Useful tips for everyday
What is defect prediction model? Abstract. Software Defect Prediction (SDP) is one of the most assisting activities of the Testing Phase of SDLC. It identifies…
How do you calculate logarithms? The relationship between ln x and log x is: ln x = 2.303 log x Why 2.303? Let’s use x…
Does 75th percentile mean top 25%? 75th Percentile – Also known as the third, or upper, quartile. The 75th percentile is the value at which…
Why does Lasso reduce variance? Just like Ridge Regression Lasso regression also trades off an increase in bias with a decrease in variance. The Lasso…
Is ANOVA used for reliability? The results of a one-way ANOVA can be considered reliable as long as the following assumptions are met: Response variable…
Is chi-square continuous distribution? The chi-square (χ2) distribution is one of the most important continuous probability distributions with many uses in statistical theory and inference…
Is it better to use median and IQR or mean and standard deviation? If there are outliers it is better to use the median and…
What are vanishing and exploding gradients in neural networks? Why do the gradients even vanish/explode? Now the gradients can accumulate during an update and result…
Why is seasonal adjustment important? These seasonal adjustments make it easier to observe the cyclical, underlying trend, and other nonseasonal movements in the series. Seasonally…
What can we conclude with confidence intervals? If a 95% confidence interval includes the null value, then there is no statistically meaningful or statistically significant…