Variance/Standard Deviation.

In[35]:=

Var = ∫_lowsupport^highsupport (x - ExpValue)^2 f[x, ν] x   

Out[35]=

40

In[36]:=

N[Var^(1/2)]

Out[36]=

6.32456

In[37]:=

(* Alternatively *)∫_lowsupport^highsupport x^2 f[x, ν] x - ExpValue^2

Out[37]=

40

In[38]:=

                   StdDev = Var^(1/2)

Out[38]=

2 10^(1/2)

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