You Are Given the Probability That an Event Will Happen $P ( E ) =$

Multiple Choice

You are given the probability that an event will happen.Find the probability that the event will not happen. $P ( E ) =$ $\frac { 17 } { 20 }$

A) $\frac { 20 } { 17 }$
B) $\frac { 3 } { 20 }$
C) $\frac { 17 } { 20 }$
D) $\frac { 1 } { 100 }$
E) $\frac { 20 } { 3 }$