Let x1,x2,dots,xn be a random sample from the p.d.f.\ f(x)=theta/x^2; 0<thetale x<infty. Which one of the following is a sufficient statistic for theta?

Q2Section I (Objective (Q1–Q80))2 of 80

Sufficient statistic — Pareto-type density

Let $x_1,x_2,\dots,x_n$ be a random sample from the p.d.f.
$f(x)=\dfrac{\theta}{x^{2}}; 0<\theta\le x<\infty$ . Which one of the following is a sufficient statistic for $\theta$ ?

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