If a card is chosen at random, there are 3 possible favorable outcomes for choosing a multiple of 3.
Explanation:
The number of possible numbers on the tile are:
0, 1 , 2 , 3 , 4, 5, 6, 7 , 8 and 9.
Now, the chosen tile can have any of the ten options mentioned above.
The favorable outcomes are 3 , 6 and 9 as they are the multiple of 3.
So, the number of possible favorable outcomes = 3 ways
Hence, if a card is chosen at random, there are 3 possible favorable outcomes for choosing a multiple of 3.