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 plated as odd or even. 2. There are 30 freshmen, 20 sophomores, 10 juniors and 5 seniors enrolled in a certain course. 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.

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 plated as odd or even. 2. There are 30 freshmen, 20 sophomores, 10 juniors and 5 seniors enrolled in a certain course. 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.

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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