Concept explainers
To choose: The correct option representing the sampling type.
Answer to Problem 10PT1
Option d is correct.
Explanation of Solution
Given information:
Number of adults interviewed
Total number of countries
The countries are divided into urban, rural, sub urban.
Concept used:
The stratified sampling divides the population into sub groups based on certain characteristics, for example, gender, geographical regions.
This is done so as to include each characteristic in the sample proportionally.
In this case, the countries (population)is divided into three groups based on geographical regions and then a sample is drawn from each group representing each of the groups and then were asked to give opinions.
Therefore, stratified random sampling is used here.
Chapter 4 Solutions
The Practice of Statistics for AP - 4th Edition
Additional Math Textbook Solutions
Introductory Statistics (2nd Edition)
Elementary Statistics: Picturing the World (6th Edition)
Fundamentals of Statistics (5th Edition)
Introductory Statistics (10th Edition)
An Introduction to Mathematical Statistics and Its Applications (6th Edition)
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