Cholesterol levels (mg/dL) were collected from a random sample of 21 patients two days after they had a heart attack. Cholesterol level 294 318 280 288 206 242 234 220 310 224 288 226 360 276 244 282 236 266 272 280 186 For the data shown above, find the following. Round answer in the first blank to 1 decimal place(s). In the second blank put the correct units. Find the mean: mg/dL Find the median: mg/dL Find the range: mg/dL Find the variance: (mg/dL)^2 Find the standard deviation: mg/dL Get help: Video