Mathematics, 11.03.2020 04:22 1KoKoNut
Realizing that your survey approach would not produce a random and representative sample, you gather some friends to help sample. You place one surveyor outside each building. You each randomly select 20 students leaving the buildings that morning and tally the results: 5 people decline to participate, 35 tell you that their class was full, and 20 tell you that their class was not full. Is your sample now representative of all classes that morning?
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Realizing that your survey approach would not produce a random and representative sample, you gather...
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