Answer
$P(F) = \dfrac{3}{10} = 0.3$
Work Step by Step
The sample space has 10 elements.
The elements of the sample space that are divisible by 3 are:
3, 6, and 9.
Thus, event F has 3 elements.
Therefore, the probability of event F is:
$P(F) = \dfrac{3}{10} = 0.3$