Statistics (III) Grouped Data

Mathematics SSS 1 Third Term

WEEK 10

Statistics (III) Grouped Data

Performance Objectives

Students should be able to;

1. Draw histogram
2. Estimate mode from the histogram
3. Construct frequency table

Drawing Histogram

Content

Histogram is a rectangular block graph representing the frequency distribution of the analysed items. The blocks are joined to one another.

Example 1: The marks scored by 40 students in a particular subject are as follows:

 

	38	74	28	32	10	31	49	34	50	19
	30	92	50	42	38	64	24	65	91	77
	18	35	12	87	41	27	8	90	22	21
	42	43	52	59	72	70	90	…