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Covid 19 and A Wavelet Analysis of the Total Deaths per Month in Brazil since 2015

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Document pages: 18 pages

Abstract: We investigate the historical series of the total number of deaths per monthin Brazil since 2015 using the wavelet transform, in order to assess whetherthe COVID-19 pandemic caused any change point in that series. Our waveletanalysis shows that the series has a change point in the variance. However, itoccurred long before the pandemic began.

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