A random variable \( X \) has the following probability distribution: \( \begin{array}{rllllllll...

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A random variable \( X \) has the following probability distribution:
\( \begin{array}{rlllllllll}\text { Values of X: } & 0 & 1 & 2 & 3 & 4 & 5 & 6 & 7 & 8 \\ P(X): & a & 3 a & 5 a & 7 a & 9 a & 11 a & 13 a & 15 a & 17 a\end{array} \)
Determine:
\[
P(X3), P(X \geq 3), P(0X5)
\]
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