#### Answer

The modes are 31 and 43.

#### Work Step by Step

The mode is the number that appears most often in a set of numbers. Tally the number of times each appears to find the mode.
26 - 1
31 - 3
37 - 1
43 - 3
51 - 1
In this case both 31 and 43 appear 3 times each, so the list is bimodal.