Presentation Transcript

1. Chapter 13

   Spreadsheets and Business Graphics:Facts and Figures

2. Why Use Spreadsheets? Plan ahead (What if) Make the computer do the work See the results of change
3. The Nature of Spreadsheets Use numbers to track performance Manual Tedious Time-consuming Error-prone Electronic spreadsheets Automate Increase ability to track performance
4. Electronic Spreadsheets VisiCalc First electronic spreadsheet program 1979 Apple II microcomputer Computer becomes an indispensable tool for financial analysis
5. Electronic SpreadsheetsLabor Saving Automatic recalculation Change one value All dependent values are recalculated A single change can affect many calculations
6. Electronic SpreadsheetsLabor Saving “What If” Analysis The process of changing one or more spreadsheet values and observing the resulting calculated effect What if we reduce the price by 5%? What if we buy a home and the mortgage rate increases by .5%?
7. Working with Spreadsheets Plan Create Edit and proofread Format Print Add graphics Provide data security – password, protect
8. Working with Spreadsheets The plan… …The result
9. Electronic SpreadsheetsHow it Works Enter data and calculations Electronic spreadsheet automatically performs the calculations Error-free results are displayed on the spreadsheet Print Store to be used again
10. Electronic SpreadsheetsFundamentals Screen Window into the spreadsheet Scroll using mouse or cursor-movement keys Rows and columns Row – number Column – letters
11. Electronic SpreadsheetsFundamentals Cell Junction of a row and column Cell address (cell reference) – letter and number Active cell (current cell) Highlighted with border or reverse video Can enter or edit data in active cell only
12. Cell Contents Label Descriptive text about entries Not used for calculations Value Number May be used in calculations
13. Cell ContentsFormula Calculation instruction Contains Cell address One or more arithmetic operators Functions Result appears in the cell containing the formula Calculation appears in the formula bar
14. Cell ContentsFunctions Pre-programmed formulas Used in formulas in place of operators Common SUM AVERAGE COUNT MIN MAX
15. Cell Ranges Group of one or more adjacent cells occurring in a rectangular shape Treated as a unit during an operation Indicate the upper-left and lower-right cells of the block May be referenced in a formula or function
16. Formatting Features Column width Row height Headings Number styles – commas, number of decimals, dollar and percent signs Appearance of data Justification Text font and style
17. Formatting Features Decoration Borders Color Clip art Business graphics Shows words and numbers in visual form Quickly and easily understood
18. Business Graphics Generate and sustain the interest of an audience Make a lesson, report, or business document more attractive Help get a point across Can reveal a trend that is lost in a column of numbers Presenter appears more prepared and organized
19. Business Graphics Analytical graphics View and analyze data Presentation graphics Make a positive impression during a presentation
20. Analytical GraphicsAnalysis-oriented Graphics Help users analyze and understand data Line Bar Pie
21. Line Graphs Shows trends or cycles over time Axis Plot area Data point Labels Titles
22. Bar Graphs Comparisons Rectangular area up to the height of the point being plotted Easy to absorb
23. Pie Charts Proportions Relationship between parts and whole One time period Exploded pie chart One wedge pulled slightly away from the pie
24. Presentation Graphics Business-quality Graphics Look like preparation by professional graphic artist Charts Graphs Visual aids Control the appearance when you create it Produce graphics faster Make last-minute changes
25. Presentation Graphics Business-quality Graphics Edit and enhance charts created by other programs Create charts, diagrams, drawing, and text slides Use clip art Support animated effects Add sounds
26. Presentation Graphics Business-quality Graphics Hardware High-resolution color monitor Color printer Ability to project computer slides on a screen
27. Objectives Describe the advantages of spreadsheets List several applications for spreadsheets Explain the underlying principles of electronic spreadsheet use Describe how to set up and modify a spreadsheet Describe the advantages of business graphics Differentiate between analytical and presentation graphics Name the elements of standard charts and graphs
28. Contents Why Use Spreadsheets? Working with Spreadsheets Business Graphics Analytical Graphics Presentation Graphics