Almost everywhere we look in the world, we see that giving money or gifts to others is positively correlated with happiness.

几乎在世界上所有的地方，我们发现给别人金钱或礼物与幸福是正相关的。

In fact the amount of racism that a person experiences in a year is positively correlated to the number of drinks and cigarettes consumed.

事实上，一个人一年所经历的种族歧视与他所消费研究的数量呈正相关。

Are they positively correlated? Giving money makes you happy. Or are they negatively correlated? On this map, green will mean they're positively correlated and red means they're negatively correlated.

它们是正相关的吗？捐钱会使你变得幸福？还是说它们是负相关的呢？在这张地图上，绿色代表正相关，红色代表负相关。

A new study by Yale University found that reading books was positively correlated with increased lifespan -- people who read books lived for around two years longer than those who didn't.

耶鲁大学的一项新研究发现，读书与寿命延长呈正相关——读书的人比不读书的人多活两年左右。