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freeCodeCamp/curriculum/challenges/english/08-data-analysis-with-python/data-analysis-with-python-course/pandas-creating-columns.english.md
Beau Carnes 5ce8abc131
fix: data analysis links (#39499) 
* fix: data analysis links

* fix: add rel attributes to all links in data analysis with python section

* fix: combine rel properties into one attribute

* fix: change single quotes to double

Co-authored-by: moT01 <20648924+moT01@users.noreply.github.com>
2020-09-03 09:48:42 -07:00

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id, title, challengeType, isHidden, videoId
id title challengeType isHidden videoId
5e9a093a74c4063ca6f7c15c Pandas Creating Columns 11 false _sSo2XZoB3E

Description

Instead of using notebooks.ai like it shows in the video, you can use Google Colab instead.

More resources:

Tests

question:
  text: |
    What code would add a "Certificates per month" column to the `certificates_earned` DataFrame like the one below?

    ```
          Certificates  Time (in months)  Certificates per month
    Tom               8                16                    0.50
    Kris              2                 5                    0.40
    Ahmad             5                 9                    0.56
    Beau              6                12                    0.50
    ```

  answers:
    - |
      ```py
      certificates_earned['Certificates'] /
      certificates_earned['Time (in months)']
      ```
    - |
      ```py
      certificates_earned['Certificates per month'] = round(
          certificates_earned['Certificates'] /
          certificates_earned['Time (in months)']
      )
      ```
    - |
      ```py
      certificates_earned['Certificates per month'] = round(
          certificates_earned['Certificates'] /
          certificates_earned['Time (in months)'], 2
      )
      ```
  solution: 3