Mathematics, 06.09.2019 05:10 kaliyab191
Is a survey that asks the opinions of students about a proposed tour program to a hill station an observational study or experimental study? if it is an experimental study, what is the controlled factor? (a) the study is an experiment. the controlled factor is the students. (b) the study is an observational study. (c) the study is an experiment. the controlled factor is the hill station. (d) the study is an experiment. the controlled factor is the survey
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Is a survey that asks the opinions of students about a proposed tour program to a hill station an ob...
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