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Which formula is used to calculate the standard deviation of sample data? X, – x + + Sa n-1 2.6***)**(— (wa) (*1–4) * +(X2–4) ? + +(*w+x)? N O + SE n-1

Which formula is used to calculate the standard deviation of sample data?
X, – x
+
+
Sa
n-1
2.6***)**(— (wa)
(*1–4) * +(X2–4) ? + +(*w+x)?
N
O
+
SE
n-1

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