The amount of aluminum contamination (ppm) in plastic of a certain type was determined for a sample of 26 plastic specimens, resulting in the following data.+ 30 30 60 63 70 79 87 90 101 102 115 118 119 119 120 125 140 145 172 182 183 191 222 244 291 511 Construct a boxplot that shows outliers. 0100 200 300 400 500 100 200 300 400 500 100 200 300 400 500 50 100 150 200 250 300 Comment on its features. (Select all that apply.) There is one extreme outlier (x = 30). There is a slight negative skew to this data. The variation is minimal. There is one extreme outlier (x = 511). The data are symmetric. There is a slight positive skew to this data.