https://postimg.cc/n9nZGLmb
Goodness of Fit 0.911, Kurtosis -0.849, Skewness: 0.073
It's very much a bell curve
Just because it's approximated by a bell curve doesn't make it a bell curve. There are quite obvious separate phenomena shaping the curve at different times.
Those graphs look nothing alike, except for "going up and then vaguely going down."
Just because it's approximated by a bell curve doesn't make it a bell curve. There are quite obvious separate phenomena shaping the curve at different times.