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De la pagina …18<br />

Intervalos de<br />

Clase<br />

148.5<br />

152.5<br />

152.5<br />

156.5<br />

156.5<br />

160.5<br />

160.5<br />

164.5<br />

164.5<br />

168.5<br />

168.5<br />

172.5<br />

172.5<br />

176.5<br />

Marca<br />

de<br />

Clase<br />

(x)<br />

Frecuencia<br />

Absoluta (f)<br />

150.5 3<br />

154.5 7<br />

158.5 13<br />

162.5 12<br />

166.5 13<br />

170.5 5<br />

174.5 2<br />

TOTAL = 55<br />

RESULTADOS<br />

Desviación media =_______________<br />

Varianza = ____________________<br />

Desviación estándar =<br />

______________<br />

Coeficiente de variación =<br />

_______________<br />

69

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