Question

മധ്യാങ്കം കാണുക

 

class	0 - 10	10 - 20	20-30	30-40	40-50	50-60
f	3	9	15	30	18	5

• A. 34.33
• B. 30
• C. 57
• D. 36.75

Answer 1

Answer:

A. 34.33

class	f	cf
0-10	3	3
10-20	9	12
20-30	15	27
30-40	30	57
40-50	18	75
50-60	5	80

N = 80

N/2 = 80/2 = 40

മധ്യാങ്കം = l + {(N/2 - m)}c/f

= 30 + {(40 - 27)10}/30

= 30 + 4.33

= 34.33