分散

ぶんさん

dispersion, decentralization, variance (statistics)

JLPT N1

Character Breakdown

Meaning and Usage

"分散" (ぶんさん) primarily means "dispersion" or "distribution" and is often used in contexts involving spreading out or decentralizing something. It is common in finance when talking about diversifying investments to reduce risk, in statistics when referring to variance or spread of data, and in social contexts such as population distribution.

Common Collocations

  • 資産を分散投資する: diversify assets to reduce risk
  • データの分散を計算する: calculate variance of data
  • 人口の分散: population dispersion

Nuances and Register

"分散" is a formal noun often used in academic, business, and technical contexts. It is not typically used in casual conversation unless discussing these topics. When used, it implies a deliberate or natural spreading out rather than random scattering.

Common Mistakes

Learners sometimes confuse "分散" with "散らす" (ちらす), which means to scatter or disperse physically. "分散" is more abstract and often used for concepts like risk, data, or population, rather than physical scattering of objects.

Understanding "分散" helps learners talk about distribution and spreading in various fields, especially in formal or technical discussions.

Example Sentences

りすくをへらすためにしさんをぶんさんとうしすることがじゅうようです。

It is important to diversify assets to reduce risk.

でーたのぶんさんをけいさんして、ばらつきをかくにんしましょう。

Let's calculate the variance of the data to check the spread.

じんこうのぶんさんがすすむと、としのかみつがかんわされます。

When population disperses, urban overcrowding is alleviated.