Which of the following is the correct syntax to slice a NumPy array arr to get every 3rd element from index 1 to 10?

easy📝 Syntax Q12 of 15

NumPy - Indexing and Slicing

Which of the following is the correct syntax to slice a NumPy array arr to get every 3rd element from index 1 to 10?

A<code>arr[10:1:3]</code>

B<code>arr[1:3:10]</code>

C<code>arr[1:10:3]</code>

D<code>arr[3:1:10]</code>

Step-by-Step Solution

Solution:

Step 1: Recall slice order
The slice syntax is arr[start:stop:step]. Here, start=1, stop=10, step=3 means from index 1 up to 9, every 3rd element.
Step 2: Check each option
arr[1:10:3] matches the correct order and values. Others have wrong order or values that don't match the requirement.
Final Answer:
arr[1:10:3] -> Option C
Quick Check:
Correct slice syntax = D [OK]

Quick Trick: Remember slice is start:stop:step in order [OK]

Common Mistakes:

Master "Indexing and Slicing" in NumPy

9 interactive learning modes - each teaches the same concept differently

Want More Practice?

15+ quiz questions · All difficulty levels · Free

More NumPy Quizzes