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\left. \begin array l \text For some given data, if M %2B \overline x = 32 \text and \\ M - \overline x = 2 , \text then Z = \ldots \ldots \ldots \\ ( q ) 6 \quad ( b ) 21 \quad ( c ) 13 \quad ( d ) 19 \end array \right. |
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