Answer Choices
If all viewers had voted, Contestant 2 would have won.
Viewers voting by social media were likely to be younger than viewers voting by text message.
If all viewers who voted had voted by social media instead of by text message, Contestant 2 would have won.
Viewers voting by social media were more likely to prefer Contestant 2 than were viewers voting by text message.
Explanation for Question 24 From the Math (Calc) Section on the Official Sat Practice Test 8
So let's look at question then number 24, 2 it tells us that for the finale of a TV show, 3 viewers are voting by social media or text message and a contestant needs 50% 4 of the votes to win. And then from here on out, 5 it gives us a lot of useful information, 6 right? And so rather than just reading it passively, 7 I'm going to read it. And I'm going to create a tree kind of 8 like a factor tree, but really a tree that kind of distributes our information 9 and creates it into a diagram that's actually really useful for us to use 10 as we solve this problem. And so we see an estimated 10% of the 11 viewers voted. So if we start with all of our viewers, 12 we know that 10% voted and then we have 13 90%, right? Cause the other 90% would make the a hundred percent didn't 14 vote. 15 So that's our first piece of info. And then it tells us, 16 and 30% of the votes were cast on social media. 17 So of the people who voted 30% were on social media. 18 So that means that 70% would have to be over text. 19 And then it goes on to tell us that contestant to earn 70% of 20 the votes on social media. So of the social media votes, 21 70% or for contestant too. 22 So that means that 30% would have to be for contestant one and 23 then 40% of the votes using text message. 24 So have all our text message voting 40% were for contestant too. 25 And that means that 60% would have to be for a contestant one. 26 And then we need to know which of the following is true. So now 27 we've diagrammed al...