Question

If Mean = 40, N = 100 find missing frequencies (a & b)

(C.I) (f)
0-10 5
10-20 7
20-30 a
30-40 25
40-50 b
50-60 15
60-70 8
70-80 5


(A) 25.20
(B) 15, 20
(C) 35.10
(D) none

Please Give Full Solution​

Answer 1

Answer:

hi

Step-by-step explanation:

Your answer is (A) 25.20