Useful tips for everyday
How to generate random numbers from a t-distribution? You can get around that limitation with the following formula: …you can replace 6 with whatever value…
Which one is better L1 or L2 regularization? From a practical standpoint, L1 tends to shrink coefficients to zero whereas L2 tends to shrink coefficients…
How do you handle missing data in Rcts? The most commonly used method to handle missing data in the primary analysis was complete case analysis…
What are the assumptions of sign test? Assumptions: Data distribution: The Sign test is a non–parametric (distribution free) test, so we do not assume that…
How do you reduce standard deviation of data? If every term is doubled, the distance between each term and the mean doubles, BUT also the…
What is sum of squared errors in K-means? K-means clustering uses the sum of squared errors (SSE) E=k∑i=1∑p∈Ci(p−mi)2 (with k clusters, C the set of…
What is the primary advantage of the repeated measures Anova compared to the between subjects ANOVA? What is the primary advantage of the repeated-measures ANOVA,…
What is an odds ratio example? Therefore, if A is the probability of subjects affected and B is the probability of subjects not affected, then…
How do you assess R-squared? To calculate the total variance, you would subtract the average actual value from each of the actual values, square the…
What is the sampling distribution of a statistic of size n? The sampling distribution of a statistic is the distribution of that statistic, considered as…