A group of 10 students participated in a study of nutritional awareness.What is the sample variance $\left(S_{X}^{2}\right)$ of their scores?
20, 19, 22, 20, 15, 18, 15, 21, 19, 20

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The Answer of A group of 10 students participated in a study of nutritional awareness.What is the sample variance $\left(S_{X}^{2}\right)$ of their scores?
20, 19, 22, 20, 15, 18, 15, 21, 19, 20

A Group of 10 Students Participated in a Study of Nutritional