The grand mean or pooled mean is the average of the means of several subsamples, as long as the subsamples have the same number of data points. For example, consider several lots, each containing several items. The items from each lot are sampled for a measure of some variable and the means of the measurements from each lot are computed. The mean of the measures from each lot constitutes the subsample mean. The mean of these subsample means is then the grand mean.
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| - Gran media (es)
- Grand mean (en)
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| - Supongamos que queremos encontrar la media global de un conjunto de datos donde los datos se han dividido en t grupos, donde: son el número de elementos de los grupos. son las medias de los correspondientes grupos. La gran media del conjunto total de datos se define como sigue: Gran media: Se puede ver la gran media como un caso especial de media ponderada.
* Datos: Q5595264 (es)
- The grand mean or pooled mean is the average of the means of several subsamples, as long as the subsamples have the same number of data points. For example, consider several lots, each containing several items. The items from each lot are sampled for a measure of some variable and the means of the measurements from each lot are computed. The mean of the measures from each lot constitutes the subsample mean. The mean of these subsample means is then the grand mean. (en)
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| - Supongamos que queremos encontrar la media global de un conjunto de datos donde los datos se han dividido en t grupos, donde: son el número de elementos de los grupos. son las medias de los correspondientes grupos. La gran media del conjunto total de datos se define como sigue: Gran media: Se puede ver la gran media como un caso especial de media ponderada.
* Datos: Q5595264 (es)
- The grand mean or pooled mean is the average of the means of several subsamples, as long as the subsamples have the same number of data points. For example, consider several lots, each containing several items. The items from each lot are sampled for a measure of some variable and the means of the measurements from each lot are computed. The mean of the measures from each lot constitutes the subsample mean. The mean of these subsample means is then the grand mean. (en)
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