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

CA CPT 2013 June Question Paper Quantitative Aptitude for online practice

Question : 30 of 50

Marks: +1, -0

Σx^2 =3390

, n = 30, σ=7 then =

x↖{-}

= ______

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