Presentation of statistical data PSM .pdf
- 1. PRESENTATION OF Statistical Data By - Sheersh Madhukar (118)
- 2. Definition Statistical data, once collected must be arranged in order to bring out the important points clearly. So, the manner in which the statistical data is presented is of utmost importance
- 3. Favourite fruit Number of Students Apple Pear Strawberry Grapes Orange Methods of presenting data There are several methods of presenting statistical data like - tables, charts, diagrams, graphs, pictures and special curves. Example of charts & diagrams Number of Students Favourite fruits Apple Pear Strawberry Grapes Orange Example of table
- 4. TABULATION P A R T 1
- 5. School Supply Number Crayon 4 Paper clip 0 Notebook 2 Glue 1 Pencil 5 Scissors 1 Simple Tables It lists raw data without summarizing, for each individual data point. It is good for small datasets or when detailed data is needed. T Y P E 1 . E X A M P L E
- 6. Age Number of patients 0-4 35 5-9 16 10-14 11 14-19 21 Frequency distribution table Data is represented by showing how often each value or range of values occurs. It groups data with corresponding frequencies. It is ideal for large datasets or to identify patterns. T Y P E 2 . Example
- 7. CHARTS & DIAGRAMS P A R T 2
- 8. Charts and diagrams are graphical tools used to present data visually They help simplify complex numerical data for easier understanding and analysis. It is useful for identifying trends, comparisons and patterns in the data Makes data more engaging and accessible for a wide audience.
- 9. BAR CHARTS Bar charts are a way of presenting a set of numbers by the length of bar and the length of the bar is proportional to the magnitude to be represented. Bar charts are popular media of presenting statistical data because they are easy to prepare and enable values to be compared visually. Types of bar charts : English Science Math Social Sciences Humanities 0 20 40 60 80 100 Simple bar chart: Numerical Scores Subjects Multiple bar chart: Series 1 Series 2 Item 1 Item 2 Item 3 0 5 10 15 20 Series 1 Series 2 Series 3 Item 1 Item 2 Item 3 Item 4 0 10 20 30 40 50 Compone bar chart:
- 10. Histogram It is a pictorial diagram of frequency distribution. It consists of a series of blocks. The class intervals are given along the horizontal axis and the frequency along vertical axis. 0 2 4 6 8 10 12 14 0 1 2 3 4 5 6
- 11. Pie Charts In pie chart instead of comparing the length of a bar the areas of segment of a circle are compared. Pie chart indicates percentage in form of segments, as it is very easy to compare. Item 1 62.5% Item 2 25% Item 3 12.5%
- 12. Other charts Series 1 Series 2 Series 3 Item 1 Item 2 Item 3 Item 4 Item 5 0 10 20 30 40 50 Item 1 Item 2 Item 3 Item 4 Item 5 0 10 20 30 40 Line diagram Frequency polygon Pictogram
- 13. THANK YOU