분위수 | 표준정규분포 4분위 | ||||
---|---|---|---|---|---|
$\text{1/4분위}$ | $\text{2/4분위}$ | $\text{3/4분위}$ | $\text{4/4분위}$ | ||
4분위수 | $\text{1/4분위수} \approx -0.67449$ | $\text{2/4분위수} = 0$ | $\text{3/4분위수} \approx 0.67449$ | $\text{4/4분위수} = \infty $ | |
100분위수 | $\text{25/100분위수} \approx -0.67449$ | $\text{50/100분위수} = 0$ | $\text{75/100분위수} \approx 0.67449$ | $\text{100/100분위수} = \infty$ |
분위수 | 정규분포 4분위 | ||||
---|---|---|---|---|---|
$\text{1/4분위}$ | $\text{2/4분위}$ | $\text{3/4분위}$ | $\text{4/4분위}$ | ||
4분위수 | $\text{1/4분위수} =\mu −2 \text{erfc}^{−1}(\frac{1}{2})\sigma$ | $\text{2/4분위수} = \mu$ | $\text{75/100분위수} =\mu +2 \text{erfc}^{−1}(\frac{1}{2})\sigma$ | $\text{4/4분위수} = \infty $ | |
100분위수 | $\text{25/100분위수} =\mu −2 \text{erfc}^{−1}(\frac{1}{2})\sigma$ | $\text{50/100분위수} = \mu$ | $\text{75/100분위수} =\mu +2 \text{erfc}^{−1}(\frac{1}{2})\sigma$ | $\text{100/100분위수} = \infty$ |