ABCDEFGHIJKLMNOPQRSTUVWXYZ
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edadf * f( X - ) ^2( X - ) ^2 * f
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10-1512.5562.5182.25911.25
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15-2017.59157.572.25650.25
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20-2522.51227012.25147
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25-3027.515412.52.2533.75
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30-3532.511357.542.25464.75
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35-4037.58300132.251058
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6015603265
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26.0
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varianza54
( X - ) ^2 * f
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desviacion estandar7.38
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CV28%
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