Answer
Sample
Work Step by Step
It is a sample because it only collects a part of the population data. Cholesterol levels are only collected from 20 patients out of 100 total in the hospital.
Elementary Statistics: Picturing the World (6th Edition)
by Larson, Ron; Farber, Betsy
Published by
Pearson
ISBN 10:
0321911210
ISBN 13:
978-0-32191-121-6
Chapter 1 - Introduction to Statistics - Section 1.1 An Overview of Statistics - Exercises - Page 6: 15
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