Answer: 0.68
First, we list down all the letters that represent 1 point.
We have:
A: 9 tiles
E: 12 tiles
I: 9 tiles
L: 4 tiles
N: 6 tiles
O: 8 tiles
R: 6 tiles
S: 4 tiles
T: 6 tiles
U: 4 tiles
Then, we will get the total number of these tiles:
Next, since there are 100 tiles in total, we will divide the number of tiles worth 1 point by 100:
Therefore, the probability of picking a tile worth 1 point is 0.68.