The probability distribution of a random variable $X$ is:
| $X$ | 0 | 1 | 2 | 3 | 4 |
|---|---|---|---|---|---|
| $P(X)$ | 0.1 | $k$ | $2k$ | $k$ | 0.1 |
where $k$ is some unknown constant. The probability that the random variable $X$ takes the value 2 is:
The probability distribution of a random variable $X$ is:
| $X$ | 0 | 1 | 2 | 3 | 4 |
|---|---|---|---|---|---|
| $P(X)$ | 0.1 | $k$ | $2k$ | $k$ | 0.1 |
where $k$ is some unknown constant. The probability that the random variable $X$ takes the value 2 is: