| $X=x$ | $-2$ | $-1$ | $0$ | $1$ | $2$ | $3$ |
| $P(X=x)$ | $0.1$ | $k$ | $0.2$ | $2k$ | $0.3$ | $k$ |
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| $x$ | $0$ | $1$ | $2$ |
|---|---|---|---|
| $P(X=x)$ | $q^2$ | $2pq$ | $p^2$ |
| $X = x$ | $1$ | $2$ | $3$ | $4$ | $5$ | $6$ |
| $P(X = x)$ | $k$ | $3k$ | $5k$ | $7k$ | $8k$ | $k$ |
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