How to find out arithmetic mean in the following marks 0---10 10---30 30------60 60---100 frequency 4 6 9 5 find out by assumed mean method ???
Answers
Answered by
0
Answer:
The assumed mean is 39.38
Step-by-step explanation:
class mark x f fx
0-10 5 4 20
10-30 20 6 120
30-60 45 9 405
60-100 80 5 400
mean is sum of fx/f
945/ 24
= 39.375
Similar questions