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Table 3

Results of the rank-based Mann–Whitney test.

Depression types p-value
Perimeter Area
Alases (Earth)/scalloped depressions (Mars) 0.64 0.12
Alases (Earth)/depressions (67P) 0.98 0.10
Depressions (67P)/scalloped depressions (Mars) 0.25 0.95
Depressions (67P)/crater (Mars) <0.00001 <0.00001

Notes. The difference between two populations is significant if the p-value < 0.01 (probability number).

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