[Solved] What is wrong with this code snippet? import numpy as np arr = np.array([[1, 2], [3, 4]]) result = np.sum(arr, axis=2) | NumPy

NumPy - Aggregation Functions

What is wrong with this code snippet?

import numpy as np
arr = np.array([[1, 2], [3, 4]])
result = np.sum(arr, axis=2)

AThe array is not defined correctly.

Bnp.sum() cannot be used on 2D arrays.

CThe axis value 2 is invalid for a 2D array.

DThe import statement is missing.

Step-by-Step Solution

Solution:

Step 1: Check array dimensions
The array has shape (2, 2), so valid axis values are 0 or 1.
Step 2: Validate axis parameter
axis=2 is out of bounds for this 2D array, causing an error.
Final Answer:
The axis value 2 is invalid for a 2D array. -> Option C
Quick Check:
Axis must be less than array dimensions [OK]

Quick Trick: Axis must be less than array dimensions [OK]

Common Mistakes:

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