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| Both sides previous revision Previous revision Next revision | Previous revision | ||
| 통계학:편차 [2025/09/23 12:32] – masteraccount | 통계학:편차 [2025/10/04 10:59] (current) – [표본표준편차] masteraccount | ||
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| Line 19: | Line 19: | ||
| ===공식=== | ===공식=== | ||
| $\sigma = \sqrt{E[(X-\mu)^2]}$ \\ | $\sigma = \sqrt{E[(X-\mu)^2]}$ \\ | ||
| + | \\ | ||
| + | ===참고=== | ||
| + | $\sigma$ 가 작으면 그래프가 뾰족한 종모양이되고, | ||
| + | $\sigma$가 크면 그래프가 평평한 종모양이된다.\\ | ||
| \\ | \\ | ||
| ====표본표준편차==== | ====표본표준편차==== | ||
| ===표기법=== | ===표기법=== | ||
| - | $ \Large | + | $ \Large |
| \\ | \\ | ||
| ===개념=== | ===개념=== | ||