You Are Given the Probability That an Event Will Not $P \left( E ^ { \prime } \right) = \frac { 3 } { 31 }$

Multiple Choice

You are given the probability that an event will not happen. Find the probability that the event will happen. $P \left( E ^ { \prime } \right) = \frac { 3 } { 31 }$

A) $\frac { 3 } { 31 }$
B) 0
C) 1
D) $\frac { 28 } { 31 }$
E) $\frac { 14 } { 31 }$