Skip to main content
Cross Validated

Good Answer

 Good Answer
Answer score of 25 or more. This badge can be awarded multiple times.
Awarded 3717 times.
Determining true mean from noisy observations
Awarded 2 days ago
Which Dickey-Fuller test for a time series modelled with an intercept/drift and a linear trend?
Awarded Sep 4 at 17:21
Any suggestions for a good undergraduate introductory textbook to statistics?
Awarded Sep 4 at 14:05
Does causation imply correlation?
Awarded Sep 2 at 19:42
What to do if sample size obtained is much larger than indicated in the power analysis?
Awarded Aug 29 at 21:52
Examples of PCA where PCs with low variance are "useful"
Awarded Aug 28 at 5:23
Box-and-Whisker Plot for Multimodal Distribution
Awarded Aug 25 at 23:34
What are some examples of anachronistic practices in statistics?
Awarded Aug 23 at 15:51
Mathematical differences between GBM, XGBoost, LightGBM, CatBoost?
Awarded Aug 20 at 11:16
Why are neural networks smooth functions?
Awarded Aug 15 at 20:03
Maximum Likelihood Estimation -- why it is used despite being biased in many cases
Awarded Aug 13 at 4:39
The definition of natural cubic splines for regression
Awarded Aug 12 at 13:11
PCA and k-fold cross-validation in caret package in R
Awarded Aug 10 at 14:31
Is there "unsupervised regression"?
Awarded Aug 9 at 14:40
Maximum likelihood function for mixed type distribution
Awarded Aug 7 at 7:46
What is use of Tweedie or poisson loss/objective function in XGboost and Deep learning models
Awarded Aug 2 at 20:22
Since we now have unlimited computation power (relative to historical norms), do we need to use statistical methods instead of simulations?
Awarded Aug 2 at 0:26
Meaning of Surrogate Split
Awarded Jul 31 at 16:08
Since we now have unlimited computation power (relative to historical norms), do we need to use statistical methods instead of simulations?
Awarded Jul 31 at 15:26
Can RMSE and MAE have the same value?
Awarded Jul 29 at 14:19
Why is t-test more appropriate than z-test for non-normal data?
Awarded Jul 29 at 13:42
Would it be possible to generate data from real data in medical research?
Awarded Jul 26 at 12:27
Why is AIC not reported with a confidence interval?
Awarded Jul 23 at 14:52
What is the definition of a symmetric distribution?
Awarded Jul 19 at 8:51
Minimum number of observations for logistic regression?
Awarded Jul 13 at 9:33
Are all values within a 95% confidence interval equally likely?
Awarded Jul 11 at 3:24
Isn't it problematic to look at the data to decide to use a parametric vs. non-parametric test?
Awarded Jul 10 at 19:32
Is unbiased maximum likelihood estimator always the best unbiased estimator?
Awarded Jul 9 at 16:17
What should I do when my neural network doesn't generalize well?
Awarded Jul 8 at 11:19
Why AUC =1 even classifier has misclassified half of the samples?
Awarded Jul 4 at 7:51
The relationship between the gamma distribution and the normal distribution
Awarded Jul 3 at 3:05
What is the difference between the different types of residuals in survival analysis (Cox regression)?
Awarded Jun 27 at 14:57
Generic sum of Gamma random variables
Awarded Jun 25 at 8:25
Why is sum of squared residuals non-increasing when adding explanatory variable?
Awarded Jun 24 at 9:16
How exactly does a "random effects model" in econometrics relate to mixed models outside of econometrics?
Awarded Jun 24 at 6:48
Can one-sided confidence intervals have 95% coverage
Awarded Jun 14 at 16:27
Significance testing or cross validation?
Awarded Jun 13 at 9:11
Should I teach Bayesian or frequentist statistics first?
Awarded Jun 10 at 11:30
Graph for relationship between two ordinal variables
Awarded Jun 10 at 8:43
Why is the second derivative required for newton's method for back-propagation?
Awarded Jun 9 at 21:51
Can you be 93.75% confident from a random sample of only five from a population of 10 000?
Awarded Jun 9 at 15:55
Distribution of ratio between two independent uniform random variables
Awarded Jun 8 at 12:50
Why is polynomial regression considered a special case of multiple linear regression?
Awarded Jun 7 at 14:19
What is quasi-binomial distribution (in the context of GLM)?
Awarded Jun 5 at 18:34
Analogy of Pearson correlation for 3 variables
Awarded Jun 2 at 12:08
Is there a way to remember the definitions of Type I and Type II Errors?
Awarded May 30 at 21:46
Rules of thumb for minimum sample size for multiple regression
Awarded May 28 at 9:47
Why is the probability zero for any given value of a normal distribution?
Awarded May 26 at 5:57
Multiple imputation for outcome variables
Awarded May 22 at 5:18
Why do we care if an MA process is invertible?
Awarded May 20 at 19:10
Algorithm for sampling fixed number of samples from a finite population
Awarded May 20 at 17:31
Why is this linear mixed model singular?
Awarded May 20 at 15:49
Should the y-axis on a survival plot go from 0 to 100 even if the lines are all above 0.9?
Awarded May 18 at 15:26
What is the appropriate model for underdispersed count data?
Awarded May 17 at 19:26
Using ANOVA on percentages?
Awarded May 13 at 20:06
How does LSTM prevent the vanishing gradient problem?
Awarded May 13 at 14:55
Why we don’t make use of the t-distribution for constructing a confidence interval for a proportion?
Awarded May 10 at 18:40
Is using both training and test sets for hyperparameter tuning overfitting?
Awarded May 6 at 22:51
Splitting Time Series Data into Train/Test/Validation Sets
Awarded May 6 at 10:35
Difference time series before Arima or within Arima
Awarded May 6 at 1:11
1
2 3 4 5
…
62