4 5 Question 3 6 The sample data below represent a variable, X: 7 3.5 8 7.6 1.9 10 2.3 11 1.8 12 4.7 13 3.4 14 15 16 a. Compute the mean, median and mode for the variable. 17 mean 18 median 19 mode 20 21 b. Compute the variance, standard deviation, range, and coefficient of variation for the variable. 22 Variance 23 Standard Deviation 24 Coeff. of Variation 25 Range 26 27 c. Compute Z scores for the variable by filling in the following table. Identify any outlier (based on Z scores). 28 Variable X Z Score 25 3.5 30 7.6 31 1.9 32 2.3 33 1.8 34 4.7 3.4 36 37 Outliers: 38