Social skills were slightly lower for children who accessed online games and social networking sites many times a day.

每天多次访问在线游戏和社交网站的儿童的社交技能略低。

It is going to be the square root of the percentage of the population that has internet access, so 0.3 times the proportion of the population that does not have internet access, times 0.7 right over here.

这将是可以访问互联网的人口比例的平方根，因此 0. 3 乘以无法访问互联网的人口比例， 乘以这里的 0. 7。