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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:

def _ratio_scores(parameters_value, clusteringmodel_gmm_good, clusteringmodel_gmm_bad):
    '''
    The ratio is smaller the better
    '''
    ratio = clusteringmodel_gmm_good.score([parameters_value]) / clusteringmodel_gmm_bad.score([parameters_value])
    sigma = 0
    return ratio, sigma