Here is a data set:

429	425	451	433
457	453	443	427
456	481	424	498
437	423	447	430
466	443	433	459
423	459	402	445
402	426	478	449

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 should contain its lower class limit and each sequential lower class limit should increase by increments of the class width. In that the data appears to be discrete, use a closed-interval to label each class