Ease Into Prep with an SAT^® Question of the Day

To determine how many students are expected to attend the upcoming school dance, first find the proportion of students who answered "Yes" to the survey. According to the table, 29 out of 50 students responded "Yes." That is over half, so the expected number of students who will attend the upcoming dance will be more than half of 850, or greater than 425. Only (D) is greater than 425, so (D) is correct. Alternatively, you could multiply 29/50 by the total number of students enrolled in the school to get the expected number of students who will attend the upcoming dance: (29/50) x 850 = 493. Again, (D) is correct.