Here is a data set: 708 674695848 782 483630 678 687 699 697 665 673 713 940 649

Question

Here is a data set: 708 674695848 782 483630 678 687 699 697 665 673 713 940 649 805 699 725 623 816 704 940 609 545 575 748 813 The goal is to construct a grouped frequency distribution table (GFDT) for this data set. The GFDT should have 10 classes with a "nice" class width. Each class should contain its lower class limit, and the lower class limits should all be multiples of the class width. This problem is to determine what the class width and the first lower class limit should be What is the best class width for this data set? optimal class width -545 What should be the first lower class limit? 1st lower class limit =

Explanation / Answer

You can take class width as 50.

Start your class with 500-550

You will have to continue it till 950-1000. It will include even the lowest number, that is 545, as well as the highest number 940.

The total number of classes will also be 10. Hence satisfying all the conditions.

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