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Top Questions
94 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 '16 at 13:14
stats.stackexchange.com

88 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 '14 at 3:02
stats.stackexchange.com

42 votes

Graph for relationship between two ordinal variables

data-visualization categorical-data ordinal scatterplot asked Apr 17 '13 at 0:31
stats.stackexchange.com

32 votes

Why are there two spellings of “heteroskedastic” or “heteroscedastic”?

terminology heteroscedasticity etymology asked May 22 '15 at 8:47
stats.stackexchange.com

23 votes

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

regression correlation multiple-regression r-squared geometry asked Nov 12 '14 at 1:07
stats.stackexchange.com

20 votes

Real life examples of distributions with negative skewness

distributions skewness teaching asked Mar 7 '14 at 16:33
stats.stackexchange.com

20 votes

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

mean average median asked Feb 11 '15 at 11:16
stats.stackexchange.com

18 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 '18 at 0:01
stats.stackexchange.com

16 votes

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

mathematical-statistics standard-deviation unbiased-estimator asked Jan 5 '15 at 23:19
stats.stackexchange.com

14 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 '15 at 16:49
stats.stackexchange.com

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Top Answers
151
Correlation between a nominal (IV) and a continuous (DV) variable
stats.stackexchange.com

50
How do I change the background color of a plot made with ggplot2
stackoverflow.com

46
Geometric interpretation of multiple correlation coefficient $R$ and coefficient of determination $R^2$
stats.stackexchange.com

45
“The total area underneath a probability density function is 1” - relative to what?
stats.stackexchange.com

45
Generating random numbers manually
stats.stackexchange.com

33
In multiple linear regression, why does a plot of predicted points not lie in a straight line?
stats.stackexchange.com

33
What does an Added Variable Plot (Partial Regression Plot) explain in a multiple regression?
stats.stackexchange.com

31
If my histogram shows a bell-shaped curve, can I say my data is normally distributed?
stats.stackexchange.com

29
Graph for relationship between two ordinal variables
stats.stackexchange.com

26
The linearity of variance
stats.stackexchange.com

25
Does mean = median imply that a unimodal distribution is symmetric?
stats.stackexchange.com

24
How can the regression error term ever be correlated with the explanatory variables?
stats.stackexchange.com

23
Odds made simple
stats.stackexchange.com

21
What are some of the most common misconceptions about linear regression?
stats.stackexchange.com

21
Why are “time series” called such?
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

20
If X and Y are uncorrelated, are X^2 and Y also uncorrelated?
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
Why shouldn't the denominator of the covariance estimator be n-2 rather than n-1?
stats.stackexchange.com

19
Is standard deviation totally wrong? How can you calculate std for heights, counts and etc (positive numbers)?
stats.stackexchange.com

18
Real life examples of distributions with negative skewness
stats.stackexchange.com

18
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

18
Ink to data ratio and plot backgrounds
stats.stackexchange.com

17
How does one find the mean of a sum of dependent variables?
stats.stackexchange.com

17
Will two distributions with identical 5-number summaries always have the same shape?
stats.stackexchange.com

17
Intuitive explanation of convergence in distribution and convergence in probability
stats.stackexchange.com

17
Probability of surviving an event three times
stats.stackexchange.com

17
Word for dismissing someone's opinions as racist, sexist, etc, instead of debating back
english.stackexchange.com

17
Is there a relationship between trigonometric functions and their “co” functions?
math.stackexchange.com

16
Are all 20 subjects the same height if the standard deviation of the sample is reported as 0.0?
stats.stackexchange.com

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