[Solved] Find the error in this code snippet:import numpy as np arr = np.array([1, 2, 3]) mean_val = np.mean(arr, axis=2) print(mean_val) | NumPy

NumPy - Aggregation Functions

Find the error in this code snippet:

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

Anp.mean() requires at least 2 arguments

BAxis 2 does not exist for 1D array

Cnp.mean() cannot be used on arrays

DMissing parentheses in print statement

Step-by-Step Solution

Solution:

Step 1: Check array dimensions
The array is 1D with shape (3,), so valid axes are 0 only.
Step 2: Understand axis parameter
Axis=2 is invalid because the array has no third dimension, causing an error.
Final Answer:
Axis 2 does not exist for 1D array -> Option B
Quick Check:
Axis must be within array dimensions [OK]

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

Common Mistakes:

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