10. 某種疾病分兩種類型：第一類型占病患總數70%，以甲藥物治療，治癒的機率為80%；第二類型占病患總數30%，以甲藥物治療，治癒的機率為40%。已知有一名感染此病的患者使用甲藥物治療後治癒，若依上述條件，則該患者屬於第一類型的機率為 __________ 。

摘要寫作：20 % (請將以下文章改寫成一篇約 150-200 字的摘要) When the World Happiness Report recently announced that Finland is the happiest country in the world, we Finns reacted the same way as we have reacted to other top rankings in various international comparisons: we criticized the methodology of the study, questioned its conclusions and pointed to the shortcomings of Finnish society. It’s not the first time something like this has happened. When the World Economic Forum ranked Finland as the most competitive economy in Europe in 2014, the chief executive of the Finnish chamber of commerce, Risto Penttilä, felt obliged to write an opinion piece for the Financial Times, where he tried to prove that the results couldn’t be right. This time it is my duty, as a Finnish expert on well-being research, to explain why the happiness of the Finns has been greatly exaggerated. More particularly, I’ll argue that there are four separate ways to measure happiness, and depending on which one we choose, we get completely different countries at the top of the rankings. So, how did the World Happiness Report measure happiness? The study asked people in 156 countries to “value their lives today on a 0 to 10 scale, with the worst possible life as a 0 and the best possible life as a 10.” This is a widely used measure of general life satisfaction. And we know that societal factors such as gross domestic product per capita, extensiveness of social services, freedom from oppression, and trust in government and fellow citizens can explain a significant proportion of people’s average life satisfaction in a country. In these measures the Nordic countries — Finland, Sweden, Norway, Denmark, Iceland — tend to score highest in the world. Accordingly, it comes as no surprise that every time we measure life satisfaction, these countries are consistently in the top 10. But when you look at how much positive emotion people experience, the top of the world ranking looks very different. Suddenly, Latin American countries such as Paraguay, Guatemala and Costa Rica are the happiest countries on earth. Finland is far from the top, which should not surprise anybody who is aware of the reputation of Finns as people who don’t display their emotions. Things get even more complicated when we look at the prevalence of depression in different countries. In one comparison made by the World Health Organization, the per capita prevalence of unipolar depressive disorders is highest in the United States. Among Western countries, Finland is number two. Paradoxically then, the same country can be high on both life satisfaction and depression. While there are significant shortcomings in international comparisons of depression and while other research has estimated that the depression rates of Finland would be closer to the global average, what is clear is that Finland is far from the top of the world in preventing depression. So while Finland might be good at keeping the average life satisfaction levels high, those at risk of depression might not get enough social support to cope with their low mood. Maybe that’s why Finland has the highest number of heavy metal bands per capita in the world. Finally, some people might argue that none of life satisfaction, positive emotions, and absence of depression is enough for happiness. Instead, something more is required: One has to experience one’s life as meaningful. But when Shigehiro Oishi, of the University of Virginia, and Ed Diener, of the University of Illinois at Urbana-Champaign, compared 132 different countries based on whether people felt that their life had an important purpose or meaning, African countries including Togo and Senegal were at the top of the ranking, while the U.S. and Finland were far behind. Here, religiosity might play a role: The wealthier countries tend to be less religious on average, and this might be the reason why people in these countries report less meaningfulness. What I’m trying to say is that, regarding happiness, it’s complicated. Different people define happiness very differently. And the same person or country can be high on one dimension of happiness while being low on another dimension of happiness. Maybe there is no such thing as happiness as such. Instead, we should look at these dimensions separately and examine how well various nations are able to support each of them.

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