Types of Charts What you need to know: • This objective will explain six common charts used in business. The object of the game in this objective is to understand how each chart is used to communicate information. • For example, if you are trying to compare the sales of Honda Civics to the sales of Nisson Altimas, what chart will best explain the data? 4.02 Understand charts and graphs used in business. Slide 2 How do you know which chart to use? • In this PowerPoint, each chart will be defined and described with an example of the data it is most appropriately suited to represent 4.02 Understand charts and graphs used in business. Slide 3 Column Chart • The first chart we will study is a Column Chart • It is used to make comparisons about groups of data 4.02 Understand charts and graphs used in business. Slide 4 Column Chart Seniors Spirit Participation Juniors Sophomores Attendance Rate 100 80 60 40 20 0 January February March April Month This chart compares Senior, Junior, and Sophomore attendance rates at assemblies over a period of four months. 4.02 Understand charts and graphs used in business. Slide 5 Compare • View the next four slides to compare how the Spirit Participation data is represented in different charts and then decide which chart makes the most sense of the information • Remember, you are comparing attendance rates of students over a period of four months 4.02 Understand charts and graphs used in business. Slide 6 Stacked Bar April March Month This chart focuses more on each group’s contribution to the whole for any given month Spirit Participation February January 0 Sophomores Juniors Seniors 4.02 Understand charts and graphs used in business. 50 100 150 200 Percent Slide 7 Line Spirit Participation 100 90 80 70 Percent This chart would be okay if we were analyzing trends in attendance rates, but it does not provide a good side-by-side comparison Sophomores Juniors Seniors 60 50 40 30 20 10 0 January February March April Month 4.02 Understand charts and graphs used in business. Slide 8 XY Scatter Spirit Participation 100 90 80 Percent 70 60 Juniors 50 Seniors 40 Sophomores 30 20 10 0 0 1 2 3 4 5 Month This chart is trying to determine if there is a correlation between the month and the attendance rate 4.02 Understand charts and graphs used in business. Slide 9 Pie Sophomores Finally, this chart is useless for representing the data because it only allows for one data series. 24% 25% January February March April 25% 4.02 Understand charts and graphs used in business. 26% Slide 10 What did you think? • Which chart best represented the data? • Why? 4.02 Understand charts and graphs used in business. Slide 11 Stacked Bar Chart • The next common business chart we will view is a Stacked Bar Chart • It is used to represent the contribution of individual items to a whole • Each bar is divided into two or more parts • The length of the stacked bar represents a total 4.02 Understand charts and graphs used in business. Slide 12 Stacked Bar 8,000 3rd Quarter 7,000 15,755 3,500 3,500 25,000 Period 4th Quarter 2nd Quarter 8,000 5,000 1st Quarter 0 12,575 10,500 10,000 ABC Computers Quarterly Report Sales Analysis 2,500 Printers Computers Monitors 3,300 20,000 30,000 40,000 Sales (in Thousands) This example shows the contributions of three components: Computers, Printers, and Monitors to total sales during each quarter (three-month period) 4.02 Understand charts and graphs used in business. Slide 13 Compare 4.02 Understand charts and graphs used in business. Slide 14 Column 30,000 25,000 Sales (in Thousands) This chart does not accurately represent the contributions of each part to the whole and is instead comparing them against each other ABC Computers Quarterly Report Component Analysis 20,000 Printers 15,000 Computers Monitors 10,000 5,000 0 1st Quarter 2nd Quarter 3rd Quarter Quarter 4.02 Understand charts and graphs used in business. 4th Quarter Bar Slide 15 Line ABC Company Quarterly Report Component Analysis 30,000 25,000 Sales (in Thousands) What about this chart? Can you clearly identify each component’s contribution to the whole? 20,000 Printers 15,000 Computers Monitors 10,000 5,000 0 1st Quarter 2nd Quarter 3rd Quarter Quarter 4.02 Understand charts and graphs used in business. 4th Quarter Line Slide 16 XY Scatter ABC Computers Quarterly Report 30,000 25,000 Sales (in Thousands) Why does this chart not work? 20,000 Printers 15,000 Computers Monitors 10,000 5,000 0 0 1 2 3 Quarter 4.02 Understand charts and graphs used in business. 4 5 XY Scatter Slide 17 Pie ABC Computers Quarterly Report Component Analysis The chart only looks at one department 18% 29% 1st Quarter 2nd Quarter 3rd Quarter 28% 4th Quarter 25% Pie 4.02 Understand charts and graphs used in business. Slide 18 What did you think? • Which chart best represented the data? • Why? 4.02 Understand charts and graphs used in business. Slide 19 Line Chart • The next common business chart we will view is a Line Chart • It is used to indicate trends in data 4.02 Understand charts and graphs used in business. Slide 20 Line Chart Which department showed the most growth? Which department showed a steady increase in sales? Which department showed a decline in sales? Sales Trends by Department Sales (in Thousands) 60,000 50,000 40,000 Music 30,000 Shoes Clothing 20,000 10,000 0 1st Quarter 4.02 Understand charts and graphs used in business. 2nd Quarter 3rd Quarter 4th Quarter Period Slide 21 Compare 4.02 Understand charts and graphs used in business. Slide 22 Column 61,000 51,000 41,000 Music 31,000 Shoes 21,000 Clothing 11,000 Q ua rte 2n r d Q ua rte 3r r d Q ua rte 4t r h Q ua r te r 1,000 1s t •In the line chart, trends were clearly and quickly analyzed just by looking at the lines Sales Trends by Department Sales (in Thousands) •To analyze the trends in this chart, the reader must read each data series separately and then make comparisons and generalizations 4.02 Understand charts and graphs used in business. Quarter Bar Slide 23 Stacked Bar Does this chart describe trends? Sales Trends by Department Quarter 4th Quarter 3rd Quarter 2nd Quarter 1st Quarter Music Shoes - 20,000 40,000 60,000 80,000 Sales (in Thousands) Clothing 4.02 Understand charts and graphs used in business. Stacked Bar Slide 24 Pie Music The pie chart fails to present all of the data 15% 1st Quarter 41% 19% 2nd Quarter 3rd Quarter 4th Quarter 25% Pie 4.02 Understand charts and graphs used in business. Slide 25 What did you think? • Which chart best represented the data? • Why? 4.02 Understand charts and graphs used in business. Slide 26 XY Scatter • The next common business chart is an XY Scatter Chart • Used to indicate a correlation between two or more sets of data • A business example of an XY Chart is one that represents the effect (if any) of caffeine on worker productivity 4.02 Understand charts and graphs used in business. Slide 27 XY Scatter What affect did the wait time in the doctor’s office have on pulse rate? 140 120 Pulse Rate What affect did the wait time in the principal’s office have on pulse rate? Stress Analysis 100 80 Principal's Office 60 Doctor's Office 40 20 0 0 5 10 15 Wait Time (in Minutes) This data is fictional 4.02 Understand charts and graphs used in business. Slide 28 Compare 4.02 Understand charts and graphs used in business. Slide 29 Column Principal's Office Pulse Rate Principal's Office Minutes Doctor's Office Pulse Rate Doctor's Office Minutes Stress Rates 140 120 Pulse Rate As you can see, if this chart is used, the data is confusing and not easily interpreted 100 80 60 40 20 0 1 2 3 4 M inutes 4.02 Understand charts and graphs used in business. 5 6 Bar Slide 30 Stacked Bar Stress Rates 6 5 Minutes This chart is also hard to interpret Principal's Office Pulse Rate Principal's Office Minutes Doctor's Office Pulse Rate Doctor's Office Minutes 4 3 2 1 0 50 100 150 Pulse Rate 4.02 Understand charts and graphs used in business. 200 250 Stacked Bar Slide 31 Pie Principal's Office Pulse Rate The pie chart, once again, is clearly not the preferred chart for representing and communicating the data! 125 60 1 70 2 3 4 80 100 90 5 6 Pie 4.02 Understand charts and graphs used in business. Slide 32 What did you think? • Which chart best represented the data? • Why? 4.02 Understand charts and graphs used in business. Slide 33 Pie Chart and Exploded Pie • Pie Chart: Used to represent only one series of data – Examples: • % of each expenditure in a budget • % of each investment type in a portfolio – It answers the question, “What is the percentage of each part to the whole?” • Exploded Pie: Used to emphasize one or more portions of the data 4.02 Understand charts and graphs used in business. Slide 34 Pie Chart Which item contributed the most percent to total sales? Financial Budget East Region 13% 13% Printers 17% PDAs Desktops 57% 4.02 Understand charts and graphs used in business. Laptops Slide 35 Exploded Pie Chart Music Sales by Genre 16% 27% Classical Country 24% Rock Hip Hop 33% 4.02 Understand charts and graphs used in business. Slide 36 Review: Can you identify the charts? 1. Represents the contribution of individual items to the whole 2. Indicates trends in data 3. Makes comparisons about groups of data 4. Emphasizes one or more portions of the data 5. Represents only one series of data 6. Indicates a correlation 4.02 Understand charts and graphs used in business. Slide 37 That’s all folks . . . • Let’s get busy and chart some data! 4.02 Understand charts and graphs used in business. Slide 38 Stacked Bar 8,000 3rd Quarter 7,000 15,755 3,500 3,500 25,000 Period 4th Quarter 8,000 2nd Quarter 5,000 1st Quarter 0 2,500 12,575 10,500 10,000 ABC Computers Quarterly Report Sales Analysis Printers Computers Monitors 3,300 20,000 30,000 40,000 Sales (in Thousands) 4.02 Understand charts and graphs used in business. Slide 39 XY Scatter Stress Analysis 140 Pulse Rate 120 100 80 Principal's Office 60 Doctor's Office 40 20 0 0 5 10 15 Wait Time (in Minutes) 4.02 Understand charts and graphs used in business. Slide 40 Column Chart Seniors Spirit Participation Juniors Sophomores Attendance Rate 100 80 60 40 20 0 January February March April Month 4.02 Understand charts and graphs used in business. Slide 41 Exploded Pie Music Sales by Genre 16% 27% Classical Country 24% Rock Hip Hop 33% 4.02 Understand charts and graphs used in business. Slide 42 Pie Financial Budget East Region 13% 13% Printers 17% PDAs Desktops 57% 4.02 Understand charts and graphs used in business. Laptops Slide 43 Line Sales Trends by Department Sales (in Thousands) 60,000 50,000 40,000 Music 30,000 Shoes Clothing 20,000 10,000 0 1st Quarter 2nd Quarter 3rd Quarter 4th Quarter Period 4.02 Understand charts and graphs used in business. Slide 44