Stack Exchange

Silverfish

top accounts reputation activity bookmarks subscriptions
Top Questions
126 votes

How to choose between t-test or non-parametric test e.g. Wilcoxon in small samples

hypothesis-testing t-test nonparametric small-sample wilcoxon-mann-whitney asked Oct 29, 2014 at 3:02
stats.stackexchange.com

95 votes

How much do we know about p-hacking "in the wild"?

hypothesis-testing statistical-significance p-value model-selection reproducible-research asked Mar 9, 2016 at 13:14
stats.stackexchange.com

58 votes

Graph for relationship between two ordinal variables

data-visualization categorical-data ordinal scatterplot asked Apr 17, 2013 at 0:31
stats.stackexchange.com

36 votes

Why are there two spellings of "heteroskedastic" or "heteroscedastic"?

terminology heteroscedasticity etymology asked May 22, 2015 at 8:47
stats.stackexchange.com

31 votes

Geometric interpretation of multiple correlation coefficient $R$ and coefficient of determination $R^2$

regression correlation multiple-regression r-squared geometry asked Nov 12, 2014 at 1:07
stats.stackexchange.com

28 votes

Real life examples of distributions with negative skewness

distributions skewness teaching asked Mar 7, 2014 at 16:33
stats.stackexchange.com

21 votes

Is the median a type of mean, for some generalization of "mean"?

mean median types-of-averages asked Feb 11, 2015 at 11:16
stats.stackexchange.com

20 votes

What's the history of box plots, and how did the "box and whiskers" design evolve?

data-visualization references boxplot history asked Sep 30, 2018 at 0:01
stats.stackexchange.com

17 votes

For which distributions is there a closed-form unbiased estimator for the standard deviation?

mathematical-statistics standard-deviation unbiased-estimator asked Jan 5, 2015 at 23:19
stats.stackexchange.com

16 votes

When would we use tantiles and the medial, rather than quantiles and the median?

descriptive-statistics quantiles median average partial-moments asked Feb 16, 2015 at 16:49
stats.stackexchange.com

1 2 3

Top Answers
196
Correlation between a nominal (IV) and a continuous (DV) variable
stats.stackexchange.com

61
Geometric interpretation of multiple correlation coefficient $R$ and coefficient of determination $R^2$
stats.stackexchange.com

55
How do I change the background color of a plot made with ggplot2
stackoverflow.com

51
Generating random numbers manually
stats.stackexchange.com

51
"The total area underneath a probability density function is 1" - relative to what?
stats.stackexchange.com

44
How can the regression error term ever be correlated with the explanatory variables?
stats.stackexchange.com

41
Intuitive explanation of convergence in distribution and convergence in probability
stats.stackexchange.com

41
What does an Added Variable Plot (Partial Regression Plot) explain in a multiple regression?
stats.stackexchange.com

37
If my histogram shows a bell-shaped curve, can I say my data is normally distributed?
stats.stackexchange.com

36
In multiple linear regression, why does a plot of predicted points not lie in a straight line?
stats.stackexchange.com

35
The linearity of variance
stats.stackexchange.com

34
Graph for relationship between two ordinal variables
stats.stackexchange.com

33
Does mean = median imply that a unimodal distribution is symmetric?
stats.stackexchange.com

30
Is there any difference between $r^2$ and $R^2$?
stats.stackexchange.com

26
What is an example of perfect multicollinearity?
stats.stackexchange.com

26
How does one find the mean of a sum of dependent variables?
stats.stackexchange.com

24
What are some of the most common misconceptions about linear regression?
stats.stackexchange.com

24
Odds made simple
stats.stackexchange.com

22
How to prove that minimum of two exponential random variables is another exponential random variable?
math.stackexchange.com

22
Why are “time series” called such?
stats.stackexchange.com

22
What is the distribution of $R^2$ in linear regression under the null hypothesis? Why is its mode not at zero when $k>3$?
stats.stackexchange.com

21
Is using correlation matrix to select predictors for regression correct?
stats.stackexchange.com

21
Why shouldn't the denominator of the covariance estimator be n-2 rather than n-1?
stats.stackexchange.com

21
How to indicate that I've exceeded my planned spending for some time period, but am not completely lacking money
english.stackexchange.com

21
Labeling center of map polygons in R ggplot
stackoverflow.com

20
If X and Y are uncorrelated, are X^2 and Y also uncorrelated?
stats.stackexchange.com

20
Correlation between OLS estimators for intercept and slope
stats.stackexchange.com

20
Is standard deviation totally wrong? How can you calculate std for heights, counts and etc (positive numbers)?
stats.stackexchange.com

20
When someone accuses you of wrong doing after you had accused them of something what do you call that or them?
english.stackexchange.com

20
Real life examples of distributions with negative skewness
stats.stackexchange.com

1 2 3 4