You are given the probability that an event will not happen.Find the probability that the event will happen. $P ( E ) = \frac { 28 } { 40 }$
A) $\frac { 7 } { 10 }$
B) 1
C) $\frac { 3 } { 20 }$
D) 0
E) $\frac { 3 } { 10 }$

Question

You are given the probability that an event will not happen.Find the probability that the event will happen. $P ( E ) = \frac { 28 } { 40 }$
A)  $\frac { 7 } { 10 }$
B) 1
C)  $\frac { 3 } { 20 }$
D) 0
E)  $\frac { 3 } { 10 }$

Quizplus · Accepted Answer

The probability that an event will happen is the complement of the probability that it will not happen. If $P(E) = \frac{28}{40}$, then the probability that the event will happen is $1 - \frac{28}{40} = \frac{12}{40} = \frac{3}{10}$.

You Are Given the Probability That an Event Will Not P(E)=2840P ( E ) = \frac { 28 } { 40 }P(E)=4028​

You Are Given the Probability That an Event Will Not $P ( E ) = \frac { 28 } { 40 }$