How to practice specific quant subtopics?

I want to practice more on certain subtopics: like interquartile range, SD. Or I want to have a dedicated practice on a certain topic to become more familiar with for example related to the concept of probability + combinatorics.

But when I was trying to go through 5LB, ETS book or Bigbook. Its hard to find questions related to these specific concepts.

You can use our Problem Solving page: Home - GregMat - GregMat

Click the “Tags” filter and include the topics you wish to practice. Please note that these questions are written by us, not ETS.

Hi Ganesh, I had checked that page but I saw no tag related to Interquartiles.

Oh I see, then you can try relevant PrepSwift or Quant Flashcards quizzes