The recurrence dissemination table for the given information is:
Class Interval Number of understudies
0-10 34 – 32 = 2
10-20 32 – 30 = 2
20-30 30 – 27 = 3
30-40 27 – 23 = 4
40-50 23 – 17 = 6
50-60 17 – 11 = 6
60-70 11 – 6 = 5
70-80 6 – 4 = 2
80-90