freeCodeCamp/curriculum/challenges/chinese/08-data-analysis-with-python/data-analysis-with-python-course/numpy-boolean-arrays.md

id, title, challengeType, isHidden, videoId

id	title	challengeType	isHidden	videoId
5e9a093a74c4063ca6f7c156	Numpy Boolean Arrays	11	false	N1ttsMmcVMM

Description

More resources: - Notebook

Tests

question:
  text: |
    What will the following code print out?

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

    print(a <= 3)
    ```
  answers:
    - |
      ```python
      [False, False, False, False, True]
      ```
    - |
      ```python
      [5]
      ```
    - |
      ```python
      [0, 1, 2, 3]
      ```
    - |
      ```python
      [True, True, True, True, False]
      ```
  solution: 4