예제: 첨도 및 비대칭도

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예제: 첨도 및 비대칭도

kurt 및 skew 함수를 사용하여 와이블 분포와 정규 분포의 형상을 비교합니다.

1. 다음 분포를 정의하고 도표화합니다.

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2. 분포의 첨도를 계산하여 두 분포의 피크를 비교합니다.

히스토그램의 빈으로 인해 정규 분포의 첨도는 0에서 약간 편차가 발생합니다. 와이블 분포의 첨도는 와이블 분포가 정규 분포에 비해 약간 뾰족한 모양임을 나타냅니다.

모집단 첨도는 다음 표본 첨도 계수로 추정할 수 있습니다.

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3. 두 분포의 비대칭도를 비교합니다.

와이블 분포는 오른쪽으로 기울어져 있습니다.

모집단의 비대칭도는 다음 표본 비대칭도 계수로 추정할 수 있습니다.

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