Answered: Determine if the following situations…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Question

Determine if the following situations use random or nonandom sampling. Then identify what type of random or nonrandom sampling technique is used.

Selected vehicles are classified according to the last number of their plates as odd or even.

There are 30 freshmen, 20 sophomores, 10 juniors and 5 seniors enrolled in a certain course. Sample are to be taken from them according to the total number of students per year level.

Minority groups of senators are to be interviewed.

Every five files out of 500 files will be chosen.

Animals going astray are to be observed

Two thousand respondents nationwide, from regions down to barangays, are selected for a national election survey.

Five hundred “likes” in Facebook are used as basis for making a decision.

Selected respondents for a study are those with Acquired Immune Deficiency Syndrome (AIDS)

Ten names of students were picked out from a box containing 1,000 names written in rolled papers.

Respondents are chosen from a list in the telephone directory.

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