Directions: Following is the table for the results of the heights of some plants which were grown in laboratory and recorded after 30 days (in mm) ||| |---|---| | Height (in mm) | Frequency | | 200 - 210 | 2 | | 210 - 220 | 3 | | 220 - 230 | 1 | | 230-240 | 5 | | 240- 250 | 7 | What is the cumulative frequency for the fifth class interval?