AP ICET 11 Sep 2020 Shift 1 Paper

Question : 144 of 200

Marks: +1, -0

Statistical Ability

Let

x_1,x_2,...x_n

be a set of observations and

f_1,f_2...f_n

be their frequencies. It

y_i = 3_xi + K \then {∑(y_i-y↖{-})^2f_i}/{∑f_i}

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