SAT Math Multiple Choice Question 780: Answer and Explanation
The table above shows the results of a survey of 520 adults who were asked whether they approved of a recent state budget proposal.
If this survey is representative of the entire voting population of a state in which 32,760 people are expected to vote on this budget referendum, how many males are expected to vote yes?
- A. 9,450
- B. 15,120
- C. 19,270
- D. 20,475
Correct Answer: A
Problem Solving/Data Analysis (tables/proportions) HARD
The table shows that 150 males voted yes out of a sample population of 520. If this is a representative ratio, and if x represents the total number of males who vote yes out of the entire population, then
(32,760)(15) = 52x
Divide by 52: