The table below shows the number of one company's stores located in each of 50 regions. Complete parts (a) through (c) below. 66 20 80 53 568 85 68 15 13 307 129 24 27 198 124 68 59 79 80 35 100 115 160 83 48 98 29 30 45 36 160 41 343 135 5 200 56 67 230 21 67 23 89 406 40 20 145 112 37 101 The population mean is = (Type an integer or a decimal. Round to one decimal place as needed.) The population variance is o = - (Round to the nearest integer as needed.) NOTE: To calculate the variance, do not round standard deviation value. This is to avoid the rounding error. The population standard deviation is = (Type an integer or a decimal. Round to one decimal place as needed.) b. What percentage of the 50 regions have stores within 1, 2, pr 3 standard deviations of the mean? 2.pr The percentage within 1 standard deviation of the mean is %. (Type an integer or a decimal. Do not round.) The percentage within 2 standard deviations of the mean is %. (Type an integer or a decimal. Do not round.) The percentage within 3 standard deviations of the mean is %. (Type an integer or a decimal. Do not round.) c. Compare your findings in part (b) with what would be expected on the basis of the empirical rule. Are you surprised at the results in part (b)? A. Yes, because a much higher percentage of regions are within 1 standard deviation of the mean than would be expected on the basis of the empirical rule.