[Solved] What will be the output of this code?import numpy as np lst = [[1, 2], [3, 4]] arr = np.array(lst) print(arr.shape) | NumPy

NumPy - Creating Arrays

What will be the output of this code?

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

A(1, 4)

B(4,)

C(2, 2)

DError

Step-by-Step Solution

Solution:

Step 1: Understand the input list shape
The list has 2 sublists, each with 2 elements, so shape is 2 rows and 2 columns.
Step 2: Check numpy array shape property
np.array converts nested lists into 2D arrays with shape (2, 2).
Final Answer:
(2, 2) -> Option C
Quick Check:
Nested list shape = (2, 2) [OK]

Quick Trick: Shape matches nested list dimensions [OK]

Common Mistakes:

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