Math
ืืืืื, ืคืจืื ืืืื ืื
Standard Deviation Calculator.
Calculate population and sample standard deviation with variance
ืืืฉืื ืืืืฉืืจืืื ืืจืฉืื
01
ืืื ืขืจืืื
ืืชืืฆืืืช ืืชืขืืื ืืช ืชืื ืืื ืืงืืื.
02 / ืชืฉืืื
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