whuber

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57,315 reputation
388190
bio website quantdec.com
location Northeastern US
age 13
visits member for 2 years, 9 months
seen 11 mins ago
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Consultant (environmental and spatial stats a specialty), expert witness, and teacher.


826 Answers

newest activity votes
76
Is $R^2$ useful or dangerous?
51
How would you explain covariance to someone who understands only the mean?
49
Essential data checking tests
46
Intuitive explanation of unit root
43
What skills are required to perform large scale statistical analyses?
41
Look and you shall find (a correlation)
36
In linear regression, when is it appropriate to use the log of an independent variable instead of the actual values?
35
Which pseudo-$R^2$ measure is the one to report for logistic regression (Cox & Snell or Nagelkerke)?
32
How to understand degrees of freedom?
30
What is the probability that this person is female?
30
Excel as a statistics workbench
30
How can a regression be significant yet all predictors be non-significant?
29
Does it make sense to add a quadratic term but not the linear term to a model?
29
Making sense of principal component analysis, eigenvectors & eigenvalues
28
What are the 'big problems' in statistics?
26
Should one remove highly correlated variables before doing PCA?
26
What intuitive explanation is there for the central limit theorem?
26
A Probability distribution value exceeding 1 is OK?
25
Famous statistician quotes
24
Line graph has too many lines, is there a better solution?
24
The Sleeping Beauty Paradox
23
Most interesting statistical paradoxes
23
How to generate uniformly distributed points on the surface of the 3-d unit sphere?
23
Why is median age a better statistic than mean age?
22
The prestige magician paradox
22
Is it meaningful to test for normality with a very small sample size (e.g., n = 6)?
22
If A and B are correlated with C, why are A and B not necessarily correlated?
21
Are inconsistent estimators ever preferable?
21
Experimental evidence supporting Tufte-style visualizations?
21
Is there a boxplot variant for Poisson distributed data?
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