7. Consider the following set of data: 15, 43, 76, 45, 41, 48, 58, 66, 74, 56, 78, 88, 34, 64, 76, 89, 24, 10, 23, 65, 75, 34, 69, 73, 25 a. Compute the mean score: x= b. Compute the sample variance: s2= c. Compute the sample coefficient of Skewness: SK=

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