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Social Studies, 21.06.2019 15:00
An education expert is researching teaching methods and wishes to interview teachers from a particular school district. she randomly selects ten schools from the district and interviews all of the teachers at the selected schools. which type of sample did she use in this study? a)systematic sample b)probability sample c)stratified sample d)cluster sample
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Social Studies, 22.06.2019 05:10
Which of the following was not a result of early humans increasing proficiency at finding food
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Social Studies, 22.06.2019 09:30
What would happen if people from different races were seperated today
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Social Studies, 22.06.2019 18:30
Music the height of a wave or the amount of the wave carries is the amplitude. a.air b.nodes c.speed d.energy
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