1) Fill in the 1) mean test score, 2) the deviation of each test score from the mean, 3) the squared deviation of each test score from the mean, 4) the sum of squared deviations, 5) the variance, 6) the standard deviation. Be sure to show your work. Test Score (Class 1) Deviations Squared Deviations 83 94 61 75 86 81 80 90 99 65 77 75 52 97 82 Total = Sum of Squared Deviations = Mean Test Score = Variance = Standard Deviation = Test Score (Class 2) Deviations Squared Deviations 83 89 80 79 86 81 80 90 91 81 83 82 78 92 93 Total = Mean Test Score = Sum of Squared Deviations = Variance = Standard Deviation =Homework 2) Describe each class distribution in terms of its central tendency, variability, and shape. How do the two classes differ? Discuss what might explain these differences? (In other words, I'm asking you to speculate about the cause.) 3) What sort of graph might you use to illustrate the differences between these classes? What would the graph look like