NIMCET 2013

Question

If $\overline{X_1}$ and $\overline{X_2}$ are the means of two distributions such that $\overline{X_1} < \overline{X_2}$ and $\overline{X}$ is the mean of the combined distribution, then

Accepted Answer

$\overline{X_1} < \overline{X} < \overline{X_2}$

Answer

$\overline{X} < \overline{X_1}$

Answer

$\overline{X} > \overline{X_2}$

Answer

$\overline{X}=\frac{\overline{X_1} + \overline{X_2}}{2}$

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