# Translations:Appendix M: Exercises/5/en

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The sums of squares of these deviations are . This result is the raw variance. The raw variance makes up the numerator of the expression for the normalized variance. Next, we compute the sum of squares of the original table. The result is . This result is the normalizing factor. This normalizing factor makes up the denominator of the expression for the normalized variance. Thus, the normalized variance is . The normalized variance represents the dissimilarity of the traces.