A Christmas Present for Everyone

Probability Level 2

There are eight people in a family. One of the members receives xx presents. Five members receive x+4x+4 each and the rest only get x2x-2 each.

Consider the 8 numbers of presents received, and find 2×modemeanmedian.2 \times \mathrm{mode} - \mathrm{mean} - \mathrm{median}.

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