반응형 sample deviation1 2. Standard Deviation 구하는 방법 목차 용어 정리 Population mean μ = Σ ( Xi ) / N Population standard deviation σ = sqrt [ Σ ( Xi – μ )^2 / N ] Population deviation σ^2 = Σ ( Xi – μ )^2 / N Sample mean ˉx = Σ ( Xi ) / n Sample standard deviation s = sqrt [ Σ ( xi – ˉx )^2 / ( n – 1 ) ] Sample deviation s^2 = Σ ( xi – ˉx )^2 / ( n – 1 ) Standard deviation 구하기 if, the sample data is x= {4,8,9,4,5,3,2} * sample mean = ˉx = Σ (Xi) / n = 3.. 2022. 9. 16. 이전 1 다음 반응형
