As I keep saying, the sample size is not small, it's large. It's in the millions. It's the number of male and female cyclists in London. What is small is the number of HGV deaths observed in this sample.
I do agree with you on this. my point was that the data used for this bbc story is (apparently unnecessarily) limited to 2009, rather than going back 10 years, 20 years, whatever. regardless of whether the number of hgv deaths or the number of bicycle journeys is considered to be the sample. The limiting of the data to such a small period appears purely to be for the reason that this limited dataset gives the impression of supporting the story which they decided they wanted to report,i.e. it is a form of cherrypicking.
I do agree with you on this. my point was that the data used for this bbc story is (apparently unnecessarily) limited to 2009, rather than going back 10 years, 20 years, whatever. regardless of whether the number of hgv deaths or the number of bicycle journeys is considered to be the sample. The limiting of the data to such a small period appears purely to be for the reason that this limited dataset gives the impression of supporting the story which they decided they wanted to report,i.e. it is a form of cherrypicking.