What is the mode for data

13, 15, 15, 16, 16, 18, 22, 23, 24, 24, 25, 9, 10, 12, 13, 13 ?

The mode for this data set is 13, as it appears three times and no other value appears more frequently.

To find the mode of a set of data, you need to identify the value or values that appear most frequently. In the given data set:

13 appears 3 times,
15 appears 2 times,
16 appears 2 times,
24 appears 2 times.

All other values appear only once.

Therefore, the mode for the given data set is 13.