To find the mode, we need to identify the number that appears most frequently in the given data set.
The data points are:
- A: 222
- B: 2, 52, 52, 5 (here, 52 appears twice)
- C: 888
- D: 555
Now, let's count the frequency of each number:
- 222 appears 1 time
- 2 appears 1 time
- 52 appears 2 times
- 5 appears 1 time
- 888 appears 1 time
- 555 appears 1 time
The number that appears most frequently is 52, which appears 2 times.
Therefore, the mode of the data set is 52.