Which "mean" to use and when? - Cross Validated
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 …
mean - Is Median Absolute Percentage Error useless? - Cross …
Nov 20, 2022 · I'm working on a project focused on pricing houses. Looking online I see a lot of works and companies providing the performances of their model using the median instead of …
mean - "Averaging" variances - Cross Validated
May 6, 2017 · Context is everything here. Are these theoretical variances (moments of distributions), or sample variances? If they are sample variances, what is the relation between …
Finding mean when class sizes are unequal - Cross Validated
What will be the mean no. of days a student was absent? I am unable to understand since the class sizes are different. Update In both the first 2 answers, the authors have assumed …
mean - "Weighted average" for medians - Cross Validated
Jan 14, 2021 · I have data that includes ~20 groups with descriptive stats of median, count, and mean for each of the groups. I know that the means are heavily skewed, and I don't have …
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 …
mean - How to explain 1.5 children? - Cross Validated
Oct 12, 2023 · This allows us to compare populations (e.g., how does the mean number of children in UK families compare to the mean number of children in German families), and to …
Mean square error or mean squared error - Cross Validated
"mean square" -squared -root -Einstein -Relativity (maintaining analogous exclusions for comparability) returns an order of magnitude more, at 3.47 million results. This (weakly) …
How to find mean relative differences? - Cross Validated
Jan 24, 2012 · How to find mean relative differences? Ask Question Asked 13 years, 10 months ago Modified 2 years ago
Does it ever make sense to average the median, mean, and mode?
Dec 16, 2020 · A has the lowest mean and the lowest mode, but the highest average right half of the scores B has the second-highest mean and the most normal distribution C has the most …