Precisely, the exmaple you put is the example I put for graphs in broad audience scienteific journals..

but again.. it seems that the teaching goes to show them how to do the graphs trhemselves, not about how to read them...

then of course.. i would go from basic graphs to mathematical analysis (up to limits, growth, areas and so on). Probably statistical analysis with visual cues is a bit too far for them :)

A pleasure

I therefore claim to show, not how men think in myths, but how myths operate in men's minds without their being aware of the fact. Levi-Strauss, Claude