This document discusses basic statistics and weighted averages. It contains a chart showing different data series with values between 0 and 40 on the x-axis and 0 to 45 on the y-axis. The chart is labeled "Weighted Average" and appears to show the weighted average lines for different data sets.

1. Estadística básica
Por: Liz Katherine Caballero Peña
Grupo 405

3. Promedio Ponderado
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0

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