Explanation for Question 29 From the Math (Calc) Section on the 2018 May Sat
Okay. Question 29 says if a lake has a high alkalinity, 2 which of the following is closest to the probability that the lake also has 3 a shallow depth. So let's go back up to the chart and find where 4 high and shallow coincide. 5 And that's right here on the table at 209. 6 This is the high row looks. 7 This is the high row, and this is the shallow column. 8 So 209 and out of the total 9 number of, uh, high alkalinity that is over 10 340. So our answer is 209, 11 over 340, which is equal to 0.614. 12 And the question asks, which of these answer choices closest, 13 and that would be answer choice D.