Question

I need help with this problem Harry made 4 hits in 9 times at-bat. If she keeps the same success level, how many hits should she make in 18 timesat-bat?

Answer 1

We need to find the expected value, first:

`E(x)=p(x)\cdot n`

Where:

`\begin{gathered} p(x)=(4)/(9) \\ n=18 \end{gathered}`

Therefore:

`\begin{gathered} E(x)=(4)/(9)\cdot18 \\ E(x)=8 \end{gathered}`

Answer:

8 hits