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Spreadsheets and Business Graphics: Facts and Figures Chapter 13
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Why Use Spreadsheets? Plan ahead (What if) Make the computer do the work See the results of change
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The Nature of Spreadsheets Use numbers to track performance Manual Tedious Time-consuming Error-prone Electronic spreadsheets Automate Increase ability to track performance
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Electronic Spreadsheets VisiCalc First electronic spreadsheet program 1979 Apple II microcomputer Computer becomes an indispensable tool for financial analysis
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Electronic Spreadsheets Labor Saving Automatic recalculation Change one value All dependent values are recalculated A single change can affect many calculations
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Electronic Spreadsheets Labor 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%?
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Working with Spreadsheets Plan Create Edit and proofread Format Print Add graphics Provide data security – password, protect
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Working with Spreadsheets The plan… …The result
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Enter data and calculations Electronic spreadsheet automatically performs the calculations Error-free results are displayed on the spreadsheet Print Store to be used again
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Electronic Spreadsheets Fundamentals Screen Window into the spreadsheet Scroll using mouse or cursor-movement keys Rows and columns Row – number Column – letters
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Electronic Spreadsheets Fundamentals 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
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Cell Contents Label Descriptive text about entries Not used for calculations Value Number May be used in calculations
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Cell Contents Formula 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
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Pre-programmed formulas Used in formulas in place of operators Common SUM AVERAGE COUNT MIN MAX
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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
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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
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Formatting Features Decoration Borders Color Clip art Business graphics Shows words and numbers in visual form Quickly and easily understood
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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
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Business Graphics Analytical graphics View and analyze data Presentation graphics Make a positive impression during a presentation
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Help users analyze and understand data Line Bar Pie
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Shows trends or cycles over time Axis Plot area Data point Labels Titles
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Comparisons Rectangular area up to the height of the point being plotted Easy to absorb
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Proportions Relationship between parts and whole One time period Exploded pie chart One wedge pulled slightly away from the pie
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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
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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
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Presentation Graphics Business- quality Graphics Hardware High-resolution color monitor Color printer Ability to project computer slides on a screen
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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
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Contents Why Use Spreadsheets? Why Use Spreadsheets? Working with Spreadsheets Working with Spreadsheets Business Graphics Business Graphics Analytical Graphics Analytical Graphics Presentation Graphics Presentation Graphics
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