10. What is the best description of the shape of this distribution? 012 3 4 5 6 7 a. Right Skewed and Bimodal b. Symmetrical and Bimodal c. Left skewed and Unimodal d. Uniform 11. Certain statistics measures are unbiased. Which of the following show three unbiased estimators? a. Variance, standard deviation, median b. mean, variance, proportion c. mean, median, range d. range, standard deviation, median 12. The Central Limit Theorem states that for a population with any distribution, the distribution of the sample means approaches as the sample size increases. a. A normal distribution b. a uniform distribution c. a skewed distribution d. varies more widely 13. Describe the correlation and give the value of the correlation coefficient, r, for this (x,y) data set. X y a. negatively correlated, r = -0.16218 2 7 b. positively correlated, r = 0.98974 positively correlated, r = 0.16218 5 16 d. negatively correlated, r = -0.97959 9 25 14 31 17 39