WHAT IS IMPLIED BY STANDARD DEVIATION BEING MUCH LARGER THAN THE …
What does it imply for standard deviation being more than twice the mean? Our data is timing data from event durations and so strictly positive. (Sometimes very small negatives show up … From stats.stackexchange.com
MEAN SQUARED ERROR VS SUM SQUARED ERROR - CROSS VALIDATED
Apr 9, 2020 The names describe the quantities quite well. "Sum of squared errors" (SSE) is the sum of the squared errors (really residuals, but this is just a slang), and the "mean squared … From stats.stackexchange.com
WILL THE MEAN OF A SET OF MEANS ALWAYS BE THE SAME AS THE MEAN …
Jan 13, 2015 Thus, the overall mean is always a weighted average of the samples means of the groups. In the special case where all the groups are the same size (n1 = ⋯ = nm n 1 = ⋯ = n … From stats.stackexchange.com
HOW DO I INTERPRET MEAN ABSOLUTE ERROR (MAE) OR MEAN ABSOLUTE ...
Apr 29, 2020 For example, I am predicting a score that can have value from 0 to 100. Lets assume MAPE = 10 for one case. In other case MAE = 10. How can I interpret it in layman … From stats.stackexchange.com
EXPECTED VALUE - MEAN, AVERAGE AND EXPECTATION - CROSS VALIDATED
May 9, 2017 What is the precise difference between the Mean, Average and Expectation ? Is there any mathematical formaulation to show the difference ? I see that often they are used … From stats.stackexchange.com
DISTRIBUTIONS - WHY IS THE ARITHMETIC MEAN > MEDIAN ON A …
Currently I am into (histograms) medians, arithmetic mean and all the general basics. And I came across the fact/rule that the arithmetic mean is (always) larger than the median if the … From stats.stackexchange.com
HOW TO READ SCIENTIFIC NOTATION OUTPUT (NUMBERS THAT INCLUDE "E")?
Dec 20, 2017 What does the notation like 8.6e-28 mean? What is the 'e' for? (2 answers) Closed 7 years ago. After running the lm regression model using R, sometime one is bound to get … From stats.stackexchange.com
"DIFFERENCE OF THE MEANS" VS "MEAN OF DIFFERENCES"
Nov 5, 2024 To put it very simply, you use the mean of differences, when there is a natural pairing between your 2 groups. eg you give people a new toothpaste to try out and you … From stats.stackexchange.com
So we have arithmetic mean (AM), geometric mean (GM) and harmonic mean (HM). Their mathematical formulation is also well known along with their associated stereotypical … From stats.stackexchange.com
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