Problem:
Compute the mode of ${1, 4, -9, 1, 1, 4, 4, 4, -3, -9, 1, -3, 1, -3, -9, 4, -9, -3, 4, 4, 1, -3, 1, 1, 4, -3}$.
Answer:
$\{1,4\}$
{'source': 'AMPS', 'file': 'amps/mathematica/counting_and_statistics/mode/36298.txt'}