Mathematics, 21.04.2020 08:20, Cjohnston742

Which formula is used to calculate the standard deviation of sample data?
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-X
+...+
X
-X
n-
1
N
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X1X
+
X2-X
+...+
X
-X
n-1
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Which formula is used to calculate the standard deviation of sample data?
TH
-X
+....