Suppose a School District Decides to Randomly Test High School

question 180

Multiple Choice

Suppose a school district decides to randomly test high school students for attention deficit disorder (ADD) .There are three high schools in the district, each with grades 9-12.The school board pools all of the students together and randomly samples 250 students.Is this a simple random sample?

• A)No, because we can't guarantee that students from each school in the sample.
• B)Yes, because the students were chosen at random.
• C)Yes, because they could have chosen any 250 students from the district.
• D)Yes, because each student is equally likely to be chosen.
• E)No, because we can't guarantee that students from each grade in the sample.

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