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| $X$ | $1$ | $2$ | $3$ | $4$ | $5$ | $6$ |
| $P(X=x_i)$ | $\alpha$ | $\alpha$ | $\alpha$ | $\beta$ | $\beta$ | $0.3$ |
| $X=x$ | $-3$ | $6$ | $9$ |
| $P(X=x)$ | $\frac{1}{6}$ | $\frac{1}{2}$ | $\frac{1}{3}$ |
| $X = x$ | $0$ | $1$ | $2$ | $3$ | $4$ | $5$ | $6$ | $7$ |
| $P(x)$ | $0.01$ | $0.10$ | $0.26$ | $0.33$ | $0.18$ | $0.06$ | $K$ | $0.04$ |
| $X$ | $0$ | $1$ | $2$ | $3$ |
|---|---|---|---|---|
| $P(X=x)$ | $\frac{1+p}{5}$ | $\frac{2-2p}{5}$ | $\frac{2-p}{5}$ | $\frac{2p}{5}$ |
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