The best stats you've ever seen | Hans Rosling

But ten years ago, I took on the task to teach global development to Swedish undergraduate students.

但十年前，我接手了一项任务，向瑞典本科生讲授全球发展课程。

That was after having spent about 20 years together with African institutions studying hunger in Africa.

那是在我与非洲机构合作了约二十年、研究非洲饥荒问题之后。

So I was sort of expected to know a little about the world, and I started, at our medical university—Karolinska Institute—an undergraduate course called Global Health.

因此，人们大概期望我了解一些世界概况，于是我在我们的医科大学——卡罗林斯卡学院——开设了一门名为‘全球健康’的本科课程。

But when you get that opportunity, you get a little nervous.

但当获得这样的机会时，你难免会有些紧张。

I thought these students coming to us actually have the highest grade you can get in the Swedish college system,

我想这些来到我们这里的学生，在瑞典的大学评分体系中已经取得了最高分，

so I thought maybe they know everything I'm going to teach them about, so I did a pretest when they came.

所以我心想他们或许已经掌握了我要教给他们的一切知识，于是他们在入学时我做了一次预测试。

One of the questions—from which I learned a lot—was this one: 'Which country' has the highest child mortality of these five pairs?'

其中有一个问题让我受益匪浅：‘在这五组国家中，哪一组的儿童死亡率最高？’

And I put them together so that in each pair of countries, one has twice the child mortality of the other.

我是这样配对的：每一对国家中，一个国家的儿童死亡率是另一个的两倍。

And this means that it's much bigger—the difference—than the uncertainty of the data.

这意味着这种差异非常大，远超数据的不确定性。

I won't put you to the test here, but it's Turkey, which is high, as there: Poland, Russia, Pakistan, and South Africa.

我就不在这里考大家了，但答案是土耳其（数值较高），以及波兰、俄罗斯、巴基斯坦和南非。