random value variance

例句：

1. 1. The population of the city has shown significant variance over the past decade.
   过去十年里，该城市的人口出现了显著的变化。
2. 2. Variations in temperature can affect the growth of crops.
   温度的波动会影响农作物的生长。
3. 3. The research team found that the variance in the data was due to random errors.
   研究团队发现数据之间的差异是由于随机误差造成的。