Finding Percentiles in a Data Set: Formula & Examples


Choose an answer and hit 'next'. You will receive your score and answers at the end.

question 1 of 3

What is a measure that indicates what percent of the given population scored at or below the measure?

Create Your Account To Take This Quiz

As a member, you'll also get unlimited access to over 79,000 lessons in math, English, science, history, and more. Plus, get practice tests, quizzes, and personalized coaching to help you succeed.

Try it risk-free
Try it risk-free for 30 days. Cancel anytime
Already registered? Log in here for access


Select the word or phrase that best fills in the blank:

If the index is not a _____, round the number up, then count the values in the data set from least to greatest until you reach the index.


Jonathan knows he scored in the 25th percentile on his psychology test. The professor gives the students the following list of grades (without names):

51, 37, 87, 95, 99, 78, 63, 96, 68, 84, 92

Assuming that there are 11 students in the class, what was Jonathan's test score?

Create your account to access this entire worksheet
A Premium account gives you access to all lesson, practice exams, quizzes & worksheets
Access to all video lessons
Quizzes, practice exams & worksheets
Certificate of Completion
Access to instructors
Create an account to get started Create Account

About This Quiz & Worksheet

The quiz will ask you to fill in the blank, to provide definitions of related concepts, and to also solve some math problems. These questions will provide you data sets that you will need to manipulate correctly.

Quiz & Worksheet Goals

The quiz will test you on the following ideas:

  • Data sets
  • Finding percentiles

Skills Practiced

The quiz will require you to practice the following skills:

  • Reading comprehension - ensure that you draw the most important information from the related data set lesson
  • Making connections - use understanding of the concept of percentiles
  • Critical thinking - apply relevant concepts to examine information about data sets in a different light
  • Problem solving - use acquired knowledge to solve percentiles of data sets practice problems

Additional Learning

After you practice your understanding with the quiz, make sure to further improve your grasp on this subject with the corresponding lesson Finding Percentiles in a Data Set: Formula & Examples. The partner lesson will help you cover these topics:

  • Defining a data set
  • Finding the index of a data set
  • Using the index to find averages
  • Exploring the formula to find the percentile of a specific value