Given below is the probability distribution of a discrete random variable $X$:
$X = x$ $1$ $2$ $3$ $4$ $5$ $6$ $P(X = x)$ $k$ $0$ $2k$ $5k$ $k$ $3k$
Then $P(X \geq 4) = $
| $X = x$ | $1$ | $2$ | $3$ | $4$ | $5$ | $6$ |
|---|---|---|---|---|---|---|
| $P(X = x)$ | $k$ | $0$ | $2k$ | $5k$ | $k$ | $3k$ |
Then $P(X \geq 4) = $
- A$\frac{1}{4}$
- B$\frac{1}{3}$
- C$\frac{1}{2}$
- D$\frac{3}{4}$
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