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Home  >>  JEEMAIN and AIPMT  >>  Mathematics  >>  Class12  >>  Probability
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Under a normal curve mean $ \pm 3\: \sigma $ covers an area equal to

$\begin {array} {1 1} (A)\;99.73 \% & \quad (B)\;95.45 \% \\ (C)\;75.15 \% & \quad (D)\;none\: of \: these \end {array}$

 

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It covers 99.73 % of total area under normal curve.
answered Jan 15, 2014 by thanvigandhi_1
 

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