I'm unsure again of how to start I know it's 19 in between the numbers, please don't fill it out . just start me off so I can learn how to do it. I thought maybe it was 299-319? am I correct? or wrong ? if wrong please explain

Here is a data set: 357 374 279 307 318 401 319 374 384 337 332 374 385 393 298 354 364 396 375 314 389 350 279 318 408 416 312 Construct a grouped frequency distribution table (GFDT) for this data set. You want 10 classes with a "nice" class width. Your classes should be labeled using interval notation. Lach class contains its lower class limit, and the lower class limits should all be multiples of the class width. In that the date appears to be discrete, use a closed-interval to label each class. Hint: The first class is (269,279) This is the format all classes should be entered. Data range Frequency 260.279 invalid Interval notation