(8 points) The following table gives one year's energy consumption for a sample of 50 households in the South. Please follow the steps below to construct a histogram by hand. a) Determine the number of groups by using the rule of thumb we learned. b) Grouping the data by using the number of groups from part a). c) Obtain a frequency (or relative-frequency, percent) distribution of the data. d) Construct a histogram based on your result from part c). 6) Is the shape of the data symmetric or skewed? If skewed, Whether skewed to the left or skewed to the right? 130 55 45 64 155 66 60 80 102 62 58 101 75 111 151 139 81 55 66 9O 97 77 51 67 125 50 136 55 83 91 54 86 100 78 93 113 111 104 96 113 96 87 129 109 69 94 99 97 83 97