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| $X = x_i$ | $3$ | $5$ | $7$ | $9$ |
|---|---|---|---|---|
| $P(X = x_i)$ | $k$ | $2k$ | $3k$ | $4k$ |
| $x = x_{i}$ | $0$ | $1$ | $2$ |
| $P_{i}$ | $\frac{25}{36}$ | $\frac{5}{18}$ | $\frac{1}{36}$ |
| $X$ | $0$ | $1$ | $2$ | $3$ | $4$ | $5$ | $6$ | $7$ |
|---|---|---|---|---|---|---|---|---|
| $P(X)$ | $0$ | $2p$ | $2p$ | $3p$ | $p^2$ | $2p^2$ | $7p^2$ | $2p$ |
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