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Previous Year Question (PYQs)
1
For the frequency distribution : Variate (x) : x1 x2 x3 .... x15 Frequency (f) : f1 f2 f3...... f15 where 0 < x1 < x2 < x3 < ... < x15 = 10 and $\sum\limits_{i = 1}^{15} {{f_i}} $ > 0,
the standard deviation cannot be :
Solution
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