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If \(p = 0.2\) and \(n = 100,\) then \(\dfrac{\sqrt{p(1-p)}}{n} =\)

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by Gmat_mission » Sun Jun 14, 2020 2:28 pm

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If \(p = 0.2\) and \(n = 100,\) then \(\dfrac{\sqrt{p(1-p)}}{n} =\)

(A) \(- \sqrt{0.002}\)
(B) \(\sqrt{0.0002} - 0.02\)
(C) \(0\)
(D) \(0.04\)
(E) \(0.4\)

[spoiler]OA=D[/spoiler]

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