## Algebra 1

$\frac{1}{2}$
To find a probability $P(x)$, we want to divide the number of events in the group $x$, and divide that number by the total number of events. In this case, there are $2$ orange sections on the spinner, and $4$ sections in total, so P(orange) is $\frac{2}{4}$, which is equivalent to $\frac{1}{2}$.