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

NumPy - Aggregation Functions

What is wrong with this code snippet?

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

Aarr is not a numpy array

Bnp.average does not exist

Caxis=1 is invalid for 1D array

DMissing import statement

Step-by-Step Solution

Solution:

Step 1: Check array dimensions
arr is 1D with shape (4,), so axis=1 does not exist.
Step 2: Understand axis parameter
Axis=1 applies to 2D or higher arrays; here it causes error.
Final Answer:
axis=1 is invalid for 1D array -> Option C
Quick Check:
Axis must exist in array dimensions [OK]

Quick Trick: Use axis only if dimension exists in array shape [OK]

Common Mistakes:

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What is wrong with this code snippet?