| $X = x$ | $-2$ | $-1$ | $0$ | $1$ | $2$ |
|---|---|---|---|---|---|
| $P(X = x)$ | $0.2$ | $0.3$ | $0.1$ | $0.15$ | $0.25$ |
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| $X$ | $1, 2, 3, 4, 5$ |
| $P(X)$ | $K^2, 2K, K, 2K, 5K^2$ |
| $X = x$ | $1$ | $2$ | $3$ | $4$ | $5$ | $6$ |
| $P(X = x)$ | $K$ | $3K$ | $5K$ | $7K$ | $8K$ | $K$ |
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