| $X=x_i$ | $-2$ | $-1$ | $0$ | $1$ | $2$ |
| $P(X=x_i)$ | $1/6$ | $k$ | $1/4$ | $k$ | $1/6$ |
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| $X$ | $1$ | $2$ | $3$ | $4$ | $5$ | $6$ |
|---|---|---|---|---|---|---|
| $F(X=x)$ | $0.2$ | $0.37$ | $0.48$ | $0.62$ | $0.85$ | $1$ |
| $X = x$ | $-1.5$ | $-0.5$ | $0.5$ | $1.5$ | $2.5$ |
|---|---|---|---|---|---|
| $P(X = x)$ | $0.05$ | $0.2$ | $0.15$ | $0.25$ | $0.35$ |
| $X = x_i$ | $0$ | $1$ | $2$ | $3$ |
| $P(X = x_i)$ | $k$ | $3k$ | $3k$ | $k$ |
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