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Social & Preventive Medicine Measures of Central Tendency and Distribution 373ea730

Area between one standard deviation on either side of mean in normal distribution curve is:

A
62%
B
68%
C
90%
D
99%
High-Yield Explanation
Ans. is 'b' i.e. 68% * mean +- 1SD-68.3%* mean +- 2SD-95.4%* mean +- 3SD-99.7%

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