a) The 10 shares in your portfolio had the following percentage changes in value over the past year: 3, 0, 6, -5, -2, 5, -18, 19, 14, 18 i. What is the sample mean? А З В 2 C 5 D 4 ii. What is the median? А З В 2 С 5 D 4 iii. What is the sample variance? A 127.11 B 114.4 С 11.27 D 10.70 iv. What is the sample range? A 15 В 1 C 37 D 20

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