The following table shows the probability distribution of a discrete random variable X, where $a, k \in \mathbb{R}^+$. $X$: 1, 2, 3, 4. $P(X=x)$: $k$, $k^2$, $a$, $k^3$.
The following table shows the probability distribution of a discrete random variable X, where $a, k \in \mathbb{R}^+$. $X$: 1, 2, 3, 4. $P(X=x)$: $k$, $k^2$, $a$, $k^3$.