medium · SAT Math

A librarian recorded the number of books read over summer break by each of 30 students in a reading club. The histogram below shows the results, where bar height is the frequency (number of students) in each interval. Books read | Number of students (frequency) 0–2 | 10 3–5 | 6 6–8 | 7 9–11 | 4 12–14 | 3 (Total students = 30) Which interval is the modal interval (the interval containing the mode) for number of books read?

1. 3–5
2. 9–11
3. 6–8
4. 0–2

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