[Solved] What does the numpy expression arr == 5 return when arr is a numpy array? — Ans: An array of True/False values showing where elements equal 5 | NumPy

NumPy - Array Operations

What does the numpy expression arr == 5 return when arr is a numpy array?

AThe sum of all elements equal to 5

BAn array of True/False values showing where elements equal 5

CThe count of elements equal to 5

DA single True or False value

Step-by-Step Solution

Solution:

Step 1: Understand element-wise comparison
The expression arr == 5 compares each element of the array to 5 individually.
Step 2: Result type of comparison
This returns a new array of the same shape with True where the element equals 5, and False otherwise.
Final Answer:
An array of True/False values showing where elements equal 5 -> Option B
Quick Check:
Element-wise comparison = Boolean array [OK]

Quick Trick: Remember == returns True/False array element-wise [OK]

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What does the numpy expression arr == 5 return when arr is a numpy array?