Questions
For 200 observations of a specific set of data, the mean was found to be 48 and the standard deviations is 3. Sum of squares of these 200 observations will be
detailed solution
Correct option is B
Given that the mean is 48 Hence, ∑xi200=48 The Variance is 9 Hence ∑xi2200−∑xi2002=9⇒∑xi2200=9+(48)2⇒∑xi2=462600Talk to our academic expert!
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For (2n + 1) observations , and 0, where all x's are distinct, let SD and MD denote the standard deviation and median, respectively. Then which of the following is always true?
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