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Dave2e

Engineer with a 6-sigma black belt. Using Excel and R during the day. Some Swift for iOS for a special projects.

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7 What is the probability of 4 person in group of 18 can have same birth month? Jun 15 '20
7 Why are the ends of the prediction interval wider in the regression? Jun 22 '20
6 Difference between Monty Hall and Russian roulette problems Aug 14 '17
5 Why is the sum of standard deviation of random effects in lme4 output greater than the actual sd of the variable itself? Oct 6 '18
5 How to simulate Likert-scale data in R? Oct 30 '18
5 Why is the intercept in multiple regression changing when including/excluding regressors? Oct 1 '19
4 wilcox.test gives different results in when using formula Jul 10 '17
3 Difficulty fitting polynomial model to data Jan 24 '19
3 What to do if the range of an input factor changes after running the experiment? Jun 9 '20
2 Are regression coefficients same as effect size? Nov 18 '20
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