For an estimate of variability within each group, you would calculate the Sample Standard Deviation.
see:
[[en.wikipedia.org]]
They give some simple worked examples. You use the (N-1) for population size because you're not sampling the whole population of each type, just a 10 year set.
The problem, as always, is Excessive Use of the green screen. The human eye/brain is quite adept at spotting large scale fakery and it jars!
Keep the fakery localised and fast and it slips through - like the quick Ugly Betty spot. But go too far and it doesn't - like the burning ship action background spot. Or the dreadful Venus scene on Defying Gravity.
Okay, right off the top:
- Maggie Q, in that outfit, could Save Anybody from Anything, Anytime!!!
- Betwixt, Tower Prep, Unnatural History = Teenagers = Smallville angst all over again.
- Torchwood, without all those unintelligible lower-class Brit accents, would indeed be watchable.
- No Ordinary Family sounds intriguing, if only for Michael Chiklis.
- All The Rest = meh.
@Hotscot:
Yes, I think everyone worked their tails off to ensure the biological integrity of 'Debbie ...' and that certainly contributed to its popular appeal!