Step 4 of 5: Find the number of students that took this exam.

Answer

To find the total number of students who took the exam, you need to sum the frequencies of all the categories represented in the histogram. The frequency for each category is indicated by the height of each bar, with the values explicitly written on most bars in this graph: 1. Scores from 70.5 to 75.5: Frequency = 8; 2. Scores from 75.5 to 80.5: Frequency = 12; 3. Scores from 80.5 to 85.5: Frequency = 1 (this bar is very low and does not have a number, but its height aligns with the 1 unit mark on the y-axis); 4. Scores from 85.5 to 90.5: Frequency = 11; 5. Scores from 90.5 to 95.5: Frequency = 15; 6. Scores from 95.5 to 100.5: Frequency = 7. Summing these values: 8 + 12 + 1 + 11 + 15 + 7 = 54. Therefore, 54 students took the exam.