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 1 minus the probability that it will not happen. Given $P(E) = \frac{28}{40} = \frac{7}{10}$, the probability that the event will happen is $1 - \frac{7}{10} = \frac{3}{10}$.

​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 $P ( E ) = \frac { 28 } { 40 }$