在线观看国产免费视频-国产午夜av-长河落日-xxx日韩-99九九久久-对白超刺激精彩粗话av-狠狠综合网-亚洲视频成人-91刺激-精品国产黄色-少妇人妻邻居-欧美性粗暴-亚洲少妇中文字幕-国产精品一色哟哟哟-黄色美女免费网站-国产网红主播精品av-日韩欧美在线一区二区三区-欧美高清日韩-国产亚洲精品久久久久久久-国产精品--色哟哟

  • 翰林提供學(xué)術(shù)活動(dòng)、國(guó)際課程、科研項(xiàng)目一站式留學(xué)背景提升服務(wù)！
Home » 國(guó)際課程 » IB課程 » Details

IB DP Maths: AA SL復(fù)習(xí)筆記4.1.4 Linear Tranformations of Data

Category: IB課程, 教材筆記, 福利干貨 Date: 2022年7月18日 下午12:47

Linear Transformations of Data

Why are linear transformations of data used?

  • Sometimes data might be very large or very small
  • You can apply a?linear transformation?to the data to make the values more manageable
    • You may have heard this referred to as:
      • Effects of constant changes
      • Linear coding
  • Linear transformations of data can?affect the statistical measures

How is the mean affected by a linear transformation of data?

How is the variance and standard deviation affected by a linear transformation of data?

Exam Tip

Worked Example

A teacher marks his students’ tests. The raw mean score is 31 marks and the standard deviation is 5 marks. The teacher standardises the score by doubling the raw score and then adding 10.

a)? ? ? ? ? Calculate the mean standardised score.

4-1-4-ib-ai-aa-sl-linear-trans-data-a-we-solution

b)? ? ? ? ?Calculate the standard deviation of the standardised scores.

4-1-4-ib-ai-aa-sl-linear-trans-data-b-we-solution

 

 

 

 

 

 

轉(zhuǎn)載自savemyexams

以上就是關(guān)于【IB DP Maths: AA SL復(fù)習(xí)筆記4.1.4 Linear Tranformations of Data】的解答，如需了解學(xué)校/賽事/課程動(dòng)態(tài)，可至翰林教育官網(wǎng)獲取更多信息。

往期文章閱讀推薦：

斯坦福大學(xué)官方推薦書(shū)單！名校學(xué)霸們暑假都在讀什么？

MIT官方發(fā)布【2026年夏季推薦閱讀書(shū)單】！橫跨科學(xué)/人文/經(jīng)濟(jì)...

? 2026. All Rights Reserved. 滬ICP備2023009024號(hào)-1

國(guó)際競(jìng)賽 國(guó)際競(jìng)賽
了解背提項(xiàng)目
國(guó)際課程 國(guó)際課程
國(guó)際課程
商務(wù)合作 商務(wù)合作
商務(wù)合作
課程試聽(tīng) 課程試聽(tīng)