Choose Yes if the situation is a random sampling. Choose No if it is not. Select the answer with the correct reason.
The teacher examined 13 identical, randomly selected tests from each of her 4 classes to find the average grade for that type of test among her students.
Yes. The tests were randomly selected, and 13 students are usually more than 40% of a classroom.
No. Even though the tests were randomly selected, there needs to be 50% of the students selected.
No. The tests were randomly selected, but a selection of only 13 students may not be enough to be a valid sample.
1 answer
Yes. The tests were randomly selected, and 13 students are usually more than 10% of a classroom, which is considered a sufficient sample size for random sampling.
1 answer