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freeCodeCamp/curriculum/challenges/chinese-traditional/08-data-analysis-with-python/data-analysis-with-python-projects/mean-variance-standard-deviation-calculator.md

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---
id: 5e46f7e5ac417301a38fb928
title: 均值-方差-標準差 計算器
challengeType: 10
forumTopicId: 462366
dashedName: mean-variance-standard-deviation-calculator
---
# --description--
創建一個函數,這個函數可以使用 Numpy 輸出 3 x 3 矩陣的每一行、每一列和所有元素的均值,方差和標準差。
你可以在 [Replit](https://replit.com/github/freeCodeCamp/boilerplate-mean-variance-standard-deviation-calculator) 上查看整個項目的具體描述和初始代碼。
點擊此鏈接fork 這個項目。 當你根據 “README.md” 中的說明完成了項目,請在下方提交你的項目鏈接。
我們仍在開發 Python 數據分析課程的交互式教學。 現在,您將需要使用其他資源來學習如何通過這一挑戰。
# --hints--
它應該通過所有的 Python 測試。
```js
```
# --solutions--
```py
# Python challenges don't need solutions,
# because they would need to be tested against a full working project.
# Please check our contributing guidelines to learn more.
```