The standard deviation of the data \( 6,5,9,13,12 \),
\( \mathrm{P}...
The standard deviation of the data \( 6,5,9,13,12 \),
\( \mathrm{P}^{3} \) 8,10 is:
W
(1) \( \sqrt{\frac{52}{7}} \)
(2) \( \sqrt{6} \)
(3) \( \frac{52}{7} \)
(4) 6
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