Calculate standard deviation and the coefficient of standard deviation, given the following data:

Calculate standard deviation and the coefficient of standard deviation, given the following data:

[sahilv]

But ye to ho gaya standard deviation ke sath ap kaise coefficient find kr skte ho but how can you find coefficient with other methods like direct, assumed mean etc. ?

[khushikohli]

Sigma fdx = -24 toh formula me galat kyu putt krra hh!??

[Tony_gaming]

This stept easy that is direct method 10:16

[pratikshakumarishaw]

find the standard deviation and also find the coefficient of standard deviation from the following data
Size of items 5, 12, 18, 24, 32, 36, 40
Freq.
2, 7, 11, 15, 10, 4, 2