For software quality to have bell curve distribution, you have to define negative software quality first and then proceed to define inifinite qualities also. Ot

For software quality to have bell curve distribution, you have to define negative software quality first and then proceed to define inifinite qualities also. Otherwise it is either one-sided distribution (when there is no negative quality) or bounded distribution. Both cases have no guarantee to have sums of independent variables to converge to a bell curve. Log-normal distribution certainly does not converge to normal distribution however hard you try [1]. [1] https://stats.stackexchange.com/questions/238529/the-sum-of-independent-lognormal-random-variables-appears-lognormal https://stats.stackexchange.com/questions/238529/the-sum-of-... Which brings up the question: what is negative software quality? Can we define that?