Below is a sample of share prices (in dollars) for a particular stock, selected at random over several years: 252 269 250 281 279 252 241 283 253 266 268 269 274 246 252 244 241 286 Use Excel (or other form of electronic assistance) to find the mean, median, mode, variance, standard deviation, and coefficient of variation for this sample. Mean = 4435.8 Median = Mode = 252 Variance = Standard Deviation = Coefficient of Variation =