Maybe quality is distributed naturally among apps. That would imply that a certain percentage of apps will always veer towards the high quality while a similar

Maybe quality is distributed naturally among apps. That would imply that a certain percentage of apps will always veer towards the high quality while a similar percentage will always be rubbish. This would mean that more apps equal more quality. I am inclined to believe in this, if only because natural distributions are so common. (That said, it would be very interesting to compare means and standard deviations between app stores. Would they differ?)