Explanation for Question 6 From the Math (Calc) Section on the Official Sat Practice Test 6
Question six provides us with a table that's titled, 2 where do people get most of their medical information? 3 It reads the table above shows a summary of 1,200 responses to a survey 4 question based on the table. 5 How many of those surveyed get most of their medical information from either a 6 doctor or the internet? All right. 7 So from this question, 8 what we want to first kind of interpret is what it's asking us. 9 So it says how many of those surveyed get most of their medical information 10 from either a doctor or the internet? So we're looking to summarize 11 the percent of those surveyed to get most of their medical information from the 12 doctor or the internet. 13 So from that, the percentage that get most of the info from a doctor 14 are 63%. And the percentage that get most of their information from the internet 15 are 13%. So adding those two together, 16 we can get 76%. Okay. 17 But obviously that's one of the answer choices below. 18 And that's because we want to find how many people there are. 19 So knowing that there are 1,200 responses in total, 20 we know that we're looking to find out how many of those chose the 21 doctor internet as their main medical source. So what is 76% of 1,200? 22 And to find that we can multiply 1,200 times 0.76, 23 because that's equivalent to 76% and that gets us to 912. 24 So we can pick C as our answer choice.