“Ever saw their red, blue and gray chart? They claim……..”
Yes, they claim many things. Its one of their greatest achievements. Making claims.
” higher variance means the spread of the data is larger, covering a wider range.”
But that doesnt tell you enough. If one mean is hgher than the other, there will be some above average points in set 1 that are still below the other mean. Sure, you can make up an example that proves your point, but you didnt give enough information at first to state your conclusion.
And skoyach, popa!