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+1 vote
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in Mathematics by (50.0k points)

In the given data

\(\begin{array}{c|c} x_f & f_i \\ \hline C & 2\\\hline2C&1\\\hline 3C&1\\\hline4C&1\\\hline5C&1\\\hline 6C&1\end{array}\)

If σ2 = 160. Find the value of |C|.

(1) 7

(2) 5

(3) 6

(4) 4

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