Find the Probability That an Event Will Not Occur
-A $\frac { 17 } { 20 }$

Multiple Choice

Find the Probability that an Event Will Not Occur
-A bag contains 20 marbles, of which 3 are blue and 7 are green. One marble is drawn from the bag. What is the probability that the marble drawn is not blue?

A) $\frac { 17 } { 20 }$
B) $\frac { 3 } { 20 }$
C) $\frac { 3 } { 10 }$
D) $\frac { 1 } { 2 }$