Answer:
The frequency for data values 2-4 is 7.
Explanation:
The given data can be grouped into intervals, such that the first interval is 2-4, the second interval is 5-7, the third interval is 8-10, and the fourth interval is 11-13.
Within the first interval, there are 7 data values (2, 4, 3, 2, 3, 4, 2).
Therefore, the frequency for data values 2-4 is 7.