Birdo83 did you read that link? It's actually someone suggesting LEGO makes some female scientist figures, they aren't actually available to buy.
If you look at the LEGO miniseries here are the figures for male:female
Series 12: 5 female, 10 male, 1 panda
Series 11: 5 female, 11 male
Series 10: 5 female, 11 male
Series 9: 4 female, 12 male
Series 8: 4 female, 12 male
There's a bit of a theme going on so I checked series 1 and surprise surprise there are 4 females and 12 males. Obviously LEGO are taking their sex ratios from Hollywood films where there are 3 male parts for every female part. Funny isn't it, considering that women make up half the population...