Explanation for Question 22 From the Math (Calc) Section on the 2018 May Sat
Question 22 asks the results of which of the studies can appropriately be generalized 2 to all the 10th graders in Ms. in spring 2015. 3 So let's go study by study and see if it could be generalized to 4 all 10th graders in this way. Well, 5 study one can and that's because it's a random sample taken from all 6 10th graders in this way. Same thing for study two, 7 again, it's random sample taken from all 10th graders in this whip. 8 However, study three cannot be generalized and that's because it 9 was a sample taken from volunteers. 10 So that could skew the results. It wasn't a random sample and therefore it 11 can't be generalized. So the answer is B studies one and two.