A probability experiment is conducted. Which of these cannot be considered a probability outcome?
$$
\begin{array}{llll}{\text { a. } \frac{2}{3}} & {\text { d. } 1.65} & {g .1} \\ {\text { b. } 0.63} & {e .-0.44} & {h .125 \%} \\ {\text { c. }-\frac{3}{5}} & {\text { f. } 0} & {\text { i. } 24 \%}\end{array}
$$