Must be E.
1) Range = 5. INSUFF to find MEAN.
2) Median = 5. INSUFF to find MEAN.
(1) & (2),
Still insuff -> (2,5,7) (3,5,8)...... several egs that satisfy the condition.
"To dream anything that you want to dream, that is the beauty of the human mind. To do anything that you want to do, that is the strength of the human will. To trust yourself, to test your limits, that is the courage to succeed."
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