freeCodeCamp/curriculum/challenges/english/08-data-analysis-with-python/data-analysis-with-python-course/numpy-operations.md

---
id: 5e9a093a74c4063ca6f7c155
title: Numpy Operations
challengeType: 11
videoId: eqSVcJbaPdk
---

## Description

<section id='description'>
<em>Instead of using notebooks.ai like it shows in the video, you can use Google Colab instead.</em>

More resources:

- <a href="https://github.com/ine-rmotr-curriculum/freecodecamp-intro-to-numpy" target="_blank" rel="noopener noreferrer">Notebooks on GitHub</a>
- <a href="https://colab.research.google.com/github/googlecolab/colabtools/blob/master/notebooks/colab-github-demo.ipynb" target="_blank" rel="noopener noreferrer">How to open Notebooks from GitHub using Google Colab.</a>

</section>

## Tests

<section id='tests'>

````yml
question:
  text: |
    What is the value of `a` after you run the following code?

    ```py
    a = np.arange(5)
    a + 20
    ```

  answers:
    - |
      ```python
      [20, 21, 22, 24, 24]
      ```
    - |
      ```python
      [0, 1, 2, 3, 4]
      ```
    - |
      ```python
      [25, 26, 27, 28, 29]
      ```
  solution: 2
````

</section>