Saturday, 6 September 2014

हिंदी में प्रश्न (शिक्षा शास्त्र)

(dec 05)- 36. The value of standard deviation is always positive because: (A) deviations are squared (B) its value is universaly accepted to be positive (C) it is the square root of positive number (D) it indicates the difference within the group

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