Given:
A bag has 2 blue, 3 red, and 5 yellow tiles.
To find:
The probability of picking a blue tile.
Solution:
We have,
Number of blue tiles = 2
Number of red tiles = 3
Number of yellow tiles = 5
Total number of tiles =
=
Now, the probability of picking a blue tile is
Therefore, the probability of picking a blue tile is 0.2.