461	441	422	457
413	425	469	405
437	462	386	451
434	512	411	469
383	454	415	425
474	423	431	447
402	390	464	33

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. Each class contains its lower class limit, and the lower class limits should all be multiples of the class width. In that the data appears to be discrete, use a closed-interval to label each class