| $X$ | $0$ | $1$ | $2$ | $3$ |
|---|---|---|---|---|
| $P(X=x)$ | $\frac{1+p}{5}$ | $\frac{2-2p}{5}$ | $\frac{2-p}{5}$ | $\frac{2p}{5}$ |
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| $X = x$ | $-2$ | $-1$ | $0$ | $1$ | $2$ | $3$ |
|---|---|---|---|---|---|---|
| $P(X = x)$ | $\frac{1}{10}$ | $K + \frac{2}{10}$ | $K + \frac{3}{10}$ | $K + \frac{3}{10}$ | $K + \frac{4}{10}$ | $K + \frac{2}{10}$ |
| $x_i$ | $-2$ | $-1$ | $0$ | $1$ | $2$ |
| $P(X = x_i)$ | $0.2$ | $0.5$ | $0.15$ | $0.25$ | $0.1$ |
| $X=x$ | $1$ | $2$ | $3$ | $4$ |
| $P(X=x)$ | $0.1$ | $0.2$ | $0.3$ | $0.4$ |
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