The range of a random variable $X$ is $\{0, 1, 2\}$. If $P(X=0) = 3C^3$,$P(X=1) = 4C - 10C^2$,and $P(X=2) = 5C - 1$,then the value of $C$ is

  • A
    $\frac{2}{3}$
  • B
    $\frac{1}{3}$
  • C
    $\frac{5}{3}$
  • D
    $\frac{4}{3}$

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$A$ random variable $X$ has the following probability distribution:
$X$$1, 2, 3, 4, 5$
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Then $P(X > 2)$ is equal to:

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