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Mar
15

Am I sexist?

We were riding on a chairlift when my other half noticed that there’s still quite a lot of people out there skiing or snowboarding without a helmet. My first reaction was: “Yes and look, most of them are men!”

But after having a second look (down), I pondered: Is it more men not wearing helmets or is it just because there are fewer women on the slopes?

After a cracking day, going up and down the mountain, that evening I sat down with a glass of wine and did some serious digging. On the SkiClub website I found a consumer research paper on snowsports with some interesting data. SkiClub is the biggest membership-based snowsports club in the UK.

Well, it doesn’t look good – there is indeed fewer women on the slopes, and the numbers are falling. As for the helmets, different sources provide slightly different numbers – from 64% to 88% of people on the slopes ride with a helmet. For this exercise, I settled on the 80% figure which seems representative.

Great, so it looks I’m not sexist after all! Without taking into account other factors (age, gender differences, risk-taking behaviour, etc.), it’s simply because there are more men on the slopes. This makes men more like likely to be spotted without a helmet.

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Jun
11

Round numbers are always false*

I’ve been refreshing my knowledge of statistic recently. It’s been a while since I took my university course. Aside from a more number focused books like “Statistics in Plain English” by Timothy C. Urdan. I recently picked up “How to Lie with Statistics” by Darrell Huff.

It’s an old classic, first published in 1953 and I must say one of the most informative reads I’ve had in a long time. You may find that examples covered may be a bit outdated, but the concepts are timeless and still valid.

Well, the word has changed so much but the numbers are still “manipulated” in the same ways.

Ohh, and it also has some delightful illustrations…

Do you want to spot when you are fed misleading numbers? Then this book is for you.

*Dr Samuel Johnson – British author, linguist and lexicographer

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