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If \( \overline{\mathrm{x}}_{1} \) and \( \overline{\mathrm{x}}_{2} \) are means to two distributions such that \( \overline{\mathrm{x}}_{1}\overline{\mathrm{x}}_{2} \) and \( \overline{\mathrm{x}} \) is the mean of the combined distribution, then :
(A) \( \bar{x}\bar{x}_{1} \)
(B) \( \overline{\mathrm{x}}\overline{\mathrm{x}}_{2} \)
(C) \( \overline{\mathrm{x}}=\frac{\overline{\mathrm{x}}_{1}\overline{\mathrm{x}}_{2}}{2} \)
(D) \( \overline{\mathrm{x}}_{1}\overline{\mathrm{x}}\overline{\mathrm{x}}_{2} \)
\( \mathrm{P} \)
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