Catherine dropped two balls, M and N, of the same size into a tray of flour from the same height as shown below. Ball M has a greater mass than ball N.

She recorded the depth of the dent made by the balls in the tray of flour in the table below.

Depth of dent (cm)
Ball1st try2nd try3rd tryAverage

Based on the results in the table above, which of the following statement(s) is/are definitely correct?

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