Question

Let F be an event with probability 0.72. Find the probability of (not F)

Short answer

As a result, $P(notF)$has a value of$0.28$

Step-by-step solution

Step 1. Given information.  

Event$P\left(F\right)=0.72$

Step 2. The following formula is used to determine (not F).

$$\begin{gathered} P(notF)+P\left(F\right)=1 \\ P(notF)=1-P\left(F\right) \\ P(notF)=1-0.72 \\ P(notF)=0.28 \end{gathered}$$

As a result, $P(notF)$has a value of $0.28$