What is the standard deviation of the following series
class
0-10
10-20
20-30
30-40
Freq
1
3
4
2
What is the standard deviation of the following series
|
class |
0-10 |
10-20 |
20-30 |
30-40 |
|
Freq |
1 |
3 |
4 |
2 |
- A
$81$
- B
$7.6$
- C
$9$
- D
$2.26$
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