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Questions  >>  JEEMAIN and NEET  >>  Mathematics  >>  Class11  >>  Statistics
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Q)

Mean of 100 items is 49. It was discovered that 3 items 60, 70, 80 were wrongly read as 38,22,50 respectively. The correct mean is

$\begin {array} {1 1} (A)\;43 & \quad (B)\;78 \\ (C)\;50 & \quad (D)\;80 \end {array}$

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