OG详解-OG3 数学1 Q26

Choice B is correct. It’s given that  483  out of  803  voters responded that they would vote for Angel Cruz. Therefore, the proportion of voters from the poll who responded they would vote for Angel Cruz is 483803​​ . It’s also given that there are a total of 6,424 voters in the election. Therefore, the total number of people who would be expected to vote for Angel Cruz is  6,424(483803​​), or  3,864. Since 3,864 of the 6,424 total voters would be expected to vote for Angel Cruz, it follows that   6,424 -3,864, or 2,560 voters would be expected not to vote for Angel Cruz. The difference in the number of votes for and against Angel Cruz is  3,864 -2,560, or    1,304  votes. Therefore, if  6,424  people vote in the election, Angel Cruz would be expected to win by 1,304  votes.