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

Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter11: Data Analysis And Probability
Section11.4: Collecting Data
Problem 6E
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A. Determine if the following situations use random or nonrandom sampling. Then,
identify what type of random or nonrandom sampling technique is used.
1. Selected vehicles are classified according to the last number of their plates as odd or
even.
2. There are 30 freshmen, 20 sophomores, 10 juniors, and 5 seniors enrolled in a certain
course. Samples are to be taken from them according to the total number of students
per year level.
3. Minority groups of senators are to be interviewed.
4. Every five files out of 500 files will be chosen.
5.
Animals going astray are to be observed.
6. Two thousand respondents nationwide, from regions down to barangays, are
selected for a national election survey.
7. Five hundred "likes" in Facebook are used as basis for making a decision.
8. Selected respondents for a study are those with Acquired Immune Deficiency
Syndrome (AIDS).
9. Ten names of students were picked out from a box containing 1,000 names written
in rolled papers.
10. Respondents are chosen from a list in the telephone directory.
Transcribed Image Text:You Can Do This A. Determine if the following situations use random or nonrandom sampling. Then, identify what type of random or nonrandom sampling technique is used. 1. Selected vehicles are classified according to the last number of their plates as odd or even. 2. There are 30 freshmen, 20 sophomores, 10 juniors, and 5 seniors enrolled in a certain course. Samples are to be taken from them according to the total number of students per year level. 3. Minority groups of senators are to be interviewed. 4. Every five files out of 500 files will be chosen. 5. Animals going astray are to be observed. 6. Two thousand respondents nationwide, from regions down to barangays, are selected for a national election survey. 7. Five hundred "likes" in Facebook are used as basis for making a decision. 8. Selected respondents for a study are those with Acquired Immune Deficiency Syndrome (AIDS). 9. Ten names of students were picked out from a box containing 1,000 names written in rolled papers. 10. Respondents are chosen from a list in the telephone directory.
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