What is the mean of the following data?
|
Class Interval |
10 - 20 |
20 - 30 |
30 - 40 |
40 - 50 |
50 - 60 |
|
Frequency |
8 |
12 |
16 |
11 |
13 |
1
12
2
23.4
3
36.5
4
42.7
5
Question Not Attempted