9. The data to the right contain the per-capita energy consumption, in 22,311 21.990 13.754 kilowatt-hours. for each of the 20 provinces of a nation. 15 650 15.492 1545 Complete parts (a) through (c) below. 13,456 ' 13.163 12.540 10,664 9,654 7.412 a. Compute the mean. variance. and standard deviation for me population. The population mean is p= _ 13709: I II (Simplify your answer.) The population variance is or = (Round to the nearest integer as needed.) The population standard deviation is a = (Round to the nearest integer as needed.) 13.172 15,067 12,416 5,603 16.565 14.038 11,628 4,150 b. What percentage of these provinces has average per-capita energy consumption within 11 standard deviation of the mean, within 1 2 standard deviations of the mean. and within :t: 3 standard deviations of the mean? The percentage within 1 1 standard deviation of the mean is %. The percentage within 1: 2 standard deviations of the mean is %. The percentage within t 3 standard deviations of the mean is %. c. Compare and contrast yourndings in part (b) versus what would be expected based on the empirical rule. Choose the correct answer below. . The values are close to those predicted by the empirical rule. . Not all of the values are close to those predicted by the empirical rule. Therefore, the data are leftskewed. . Not all of the values are close to those predicted by the empirical rule. Therefore, the data are right-skewed. . The values are very dierent from those predicted by the empirical rule. Therefore. the data must be heavily skewed