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The test score of a sample of 20 students in a class are as follows: 20, 30,21, 29 10,17,18,15, 27, 25, 16, 15, 19, 22,13, 17, 14, 18, 12, and 9. Find the 10th,20th, and 80th percentile.

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter10: Statistics

Section10.5: Comparing Sets Of Data

Problem 1GP

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Question

The test score of a sample of 20 students in a class are as follows: 20, 30,21, 29 10,17,18,15, 27, 25, 16, 15, 19, 22,13, 17, 14, 18, 12, and 9. Find the 10th,20th, and 80th percentile.

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