Consider the function f(μ)=∑ni=1(xi−μ)2, where xi=i,i=1,2,…,n
.
What is the first and second derivative of f(μ)?
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Consider the function f(μ)=∑ni=1(xi−μ)2, where xi=i,i=1,2,…,n
.
What is the first and second derivative of f(μ)?
f′(μ)=−2∑ni=1(xi−μ) and f′′(μ)=2n