Question

if the mean of the data is 65.6 find the missing frequencies
10-30 =5
30-50=8
50-70=f1
70-90=20
90-110=f2
110-130=2

Answer 1

Answer:

10-30 =5

30-50=8

50-70=f1

70-90=20

90-110=f2

110-130=2