Despite its more relaxed regulations, the county has a lower-than-average population growth rate.
尽管控制更为宽松，但是该县的人口增长率却低于平均水平。
2
People with a lower-than-average IQ (between 75 and 90) are more likely to drop out, go to jail and live in poverty.
智商低于平均值（75到90）的人辍学、进监狱和生活贫困的可能性更大。
3
The other service is predictive medicine-a list of genetic variations that might put you at higher-than-average (or, indeed, lower-than-average) risk of developing particular diseases.