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Li designed a survey to determine how comfortable students at her middle school are with fractions. There are 600 students in her middle school. The students are equally distributed among grade levels. She selected a sample of 28 students in her first-period class. Which best explains Li’s sample?

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barnuts

The correct answer to this is:

Nonrandom and biased

 

The method of Li’s sampling has a tendency that some elements or portion in the population has no chance of selection. Further, it was not stated which portion of the population she obtained the sample thus we cannot accurately determine the probability of selection. This kind of sampling results in a bias. A biased sampling is a type of nonrandom sampling. 

Answer:

C for edge users

Step-by-step explanation:

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