Nelson rule identificadas.
| One point is more than 3 standard deviations from the mean. Color verde |
| Nine (or more) points in a row are on the same side of the mean. color amarillo |
| Two (or three) out of three points in a row are more than 2 standard deviations from the mean in the same direction. color azul |
| Four (or five) out of five points in a row are more than 1 standard deviation from the mean in the same direction. color rosa |

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