Find the Indicated Probability $\frac { 2 } { 19 }$

Find the indicated probability. Round your answer to 6 decimal places when necessary.
-A bag contains 19 balls numbered 1 through 19. What is the probability that a randomly selected ball has an even number?

A) $\frac { 2 } { 19 }$
B) $\frac { 9 } { 19 }$
C) $\frac { 1 } { 2 }$
D) $\frac { 19 } { 9 }$