\\sum\x^ 2 =3390 , n = 30, σ=7 then \x^{-}= ______:

CA CPT Model Test Paper 3 with solutions for online practice

Question : 196 of 200

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\Σ\x^ 2 =3390

, n = 30, σ=7 then

\x↖{-}

= ______:

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