Answer:
Mode: 5
Step-by-step explanation:
The mode is the most common number that appears in a set of data. To find the mode, count how often each number appears in the set, and the number that appears the most times is the mode.
In this number set, 5 is the most common number found in this data set, which is found the most (3) times in the number set: 5,0,9,9,3,0,5,5,4
Therefore, 5 is the mode of this number set.