Question

Calculate standard deviation and its
cofficient for the following data.
X Х
16
10
4
12
S
14
7
5
18
4​

Answer 1

Step-by-step explanation:

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Answer 2

Answer:

Marks Mid-values(X) f dxi=X−25/10 fdx

i

​

f dx

i

2

​

0−10 5 10 −2 −20 40

10−20 15 8 −1 −8 8

20−30 25 15 0 0 0

30−40 35 8 1 8 8

40−50 45 4 2 8 16

Total

45

−12 72

Step-by-step explanation: