Comments on: MODELING 101 – Part 1 http://quixoticfinance.com/modeling-101-part-1/ To protect our windmills against Don Quixote and his Knights of the Holy Black Swan Sat, 02 Jan 2016 20:43:56 +0100 hourly 1 https://wordpress.org/?v=5.3 By: John Vos http://quixoticfinance.com/modeling-101-part-1/#comment-8526 Sat, 02 Jan 2016 20:43:56 +0000 http://quixoticfinance.com/?p=66#comment-8526 You’re totally right. It’s crazy that I didn’t spot this before. I made the correction and replaced ‘heavier’ by ‘taller’. The difference in weights is difficult to see, as you say, so I just omitted that. Thanks for pointing this out!

]]> By: Dean Cardno http://quixoticfinance.com/modeling-101-part-1/#comment-8523 Sat, 02 Jan 2016 18:21:27 +0000 http://quixoticfinance.com/?p=66#comment-8523 Thank you for this – it is an interesting start, and I look forward to reading the next parts. I do have a suggestion for one small correction, though. In introducing the first chart, you write that: “The first striking thing is that there is more blue on the right-hand side, and more red on the left-hand side, confirming the intuitive fact that men tend to be heavier than women.”

The X-axis is height, so more blue dots on the right indicates that men are (generally) taller than women, not heavier. There are also more red dots higher on the chart (on the Y-axis), although it is more difficult to see (higher variability in height than weight, or perhaps it is an effect of the scales on the chart). I would suggest a re-write along the lines of:
“The first striking thing is that there is more blue on the right-hand side, and more red on the left-hand side, confirming the intuitive fact that men tend to be taller than women. The blue dots also appear higher on the chart than the red dots, confirming the equally common observation that men tend to be heavier than women, as well.”

Cheers,

Dean

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