The superintendent is creating a group of teachers to serve on a technology committee. She selects 20 elementary teachers, 20 middle school teachers, and 20 high school teachers. What type of sampling method is she using? Cluster Sampling Convenience Sampling Stratified Random Sampling Systematic Sampling

The superintendent is creating a group of teachers to serve on a technology committee. She selects 20 elementary teachers, 20 middle school teachers, and 20 high school teachers. What type of sampling method is she using? Cluster Sampling Convenience Sampling Stratified Random Sampling Systematic Sampling

Advanced Engineering Mathematics

10th Edition

ISBN:9780470458365

Author:Erwin Kreyszig

Publisher:Erwin Kreyszig

Chapter2: Second-order Linear Odes

Section: Chapter Questions

Problem 1RQ

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