Explanation for Question 21 From the Math (Calc) Section on the 2018 May Sat
Question 21 says which of the following could be the median score and study 2 three. So to figure out the answer, 3 I'm just going to go to study three and I'm going to cross off 4 a score ranges until I get to the center. 5 So there are eight students who scored in range 50 to 59, 6 and there are 80 students who scored in these two ranges. 7 So I can cross that off and then I can subtract eight from 65 8 to figure out how many are left in this category. 9 And that's 57. So since there are 57 in this category 10 and 67 in this category, if I just crossed off numbers until I got 11 to the center number, it would be in the 60 to 69 range because 12 that has more students left in it, 13 which tells us that the median score is in the 60 to 69 14 range. And the only answer choice that falls within that range is answer choice 15 B.