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Chapter 2: Problem 37

The American Heart Association reported the following percentage breakdown of expenses. Draw a pie chart depicting the information. Interpret. $$ \begin{array}{|lr|} \hline \text { Category } & \text { Percent } \\ \hline \text { Research } & 32.3 \\ \text { Public Health Education } & 23.5 \\ \text { Community Service } & 12.6 \\ \text { Fund Raising } & 12.1 \\ \text { Professional and Educational Training } & 10.9 \\ \text { Management and General } & 8.6 \\ \hline \end{array} $$

Short Answer

Expert verified
Draw a pie chart using the percentage breakdowns, where Research is the largest section.

Step by step solution

01

Understanding the Components

First, we need to understand the different categories and their respective percentage breakdowns which will help us draw sections of the pie chart. The categories and percentages are: Research (32.3%), Public Health Education (23.5%), Community Service (12.6%), Fund Raising (12.1%), Professional and Educational Training (10.9%), and Management and General (8.6%).
02

Creating the Pie Chart

To draw a pie chart, each category's percentage must be converted into a corresponding angle on a circle. Since a circle has 360 degrees, calculate each angle using the formula: \( \text{Angle} = \frac{\text{Percentage}}{100} \times 360 \).
03

Calculating Degrees (Angles) for Each Category

- Research: \( 32.3\% \times 360 = 116.28 \) degrees- Public Health Education: \( 23.5\% \times 360 = 84.6 \) degrees- Community Service: \( 12.6\% \times 360 = 45.36 \) degrees- Fund Raising: \( 12.1\% \times 360 = 43.56 \) degrees- Professional and Educational Training: \( 10.9\% \times 360 = 39.24 \) degrees- Management and General: \( 8.6\% \times 360 = 30.96 \) degrees
04

Drawing the Pie Chart

Using the calculated angles, draw a circle with different sectors for each category. Use a protractor to measure and draw each angle in order, starting with Research, followed by Public Health Education, and so on.
05

Interpretation

The pie chart represents how the American Heart Association allocates its expenses across different categories. The largest portion of their budget goes to Research, followed by Public Health Education, indicating a strong emphasis in these areas.

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Key Concepts

These are the key concepts you need to understand to accurately answer the question.

Percentage Breakdown
When understanding a percentage breakdown, it's all about how each category contributes to the whole. Imagine having a delicious cake split into different slices. Each slice represents a portion of the total cake, just like expenses in a budget. Here, different expenses like Research and Public Health Education are the slices.
  • Percentages show how much each category takes out of the total 100%.
  • The sum of all percentages should be exactly 100% to ensure no part of the cake is missing or over what we have.
  • This way, you can easily visualize what the organization prioritizes financially based on bigger or smaller pieces.
Using the American Heart Association as an example, Research takes up the largest slice, indicating their main focus. You can quickly grasp the priorities or spending focus by simply examining the percentage breakdowns.
Educational Data Interpretation
Educational data interpretation is like sifting through a story that numbers are trying to tell. It helps make sense of raw figures by translating them into relatable, understandable information. For instance, with percentage data from organizations, one can infer priorities and financial commitments.
  • Look beyond numbers to imply what they mean in practical terms.
  • Identify trends or significant highlights鈥攍ike which category gets the most attention or the least.
  • These interpretations can guide decisions, suggest improvements, and highlight areas of focus for stakeholders.
In our task with the American Heart Association, interpreting their funding as mostly directed towards Research conveys a clear message of their commitment to driving innovations for heart health. Educational data interpretation helps paint a clearer picture and makes the story behind the numbers come to life.
Graphical Representation of Data
Graphical representation transforms numbers into visual content, which makes complex data easier to grasp at a glance. When we use graphs like pie charts, we leverage our brain's ability to visually process and compare different data points.
  • A pie chart is a useful visual tool for representing percentage data.
  • Each 'slice' or 'sector' of the pie represents a different category and its size corresponds to the percentage it represents.
  • The whole chart then provides a comprehensive visual picture of how categories compare with one another.
With the American Heart Association's expenses, visualizing the data with a pie chart allows one to immediately see which areas are prioritized without digging too far into the numbers. This type of representation not only makes understanding easier but also more engaging, offering a quick overview at a single glance.

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Most popular questions from this chapter

A dataset consists of 145 observations that range from 56 to \(490 .\) What size class interval would you recommend?

Shown below are the military and civilian personnel expenditures for the eight largest military locations in the United States. Develop a bar chart and summarize the results in a brief report. $$ \begin{array}{|lclc|} \hline \text { Location } & \begin{array}{c} \text { Amount Spent } \\ \text { (millions) } \end{array} & \text { Location } & \begin{array}{c} \text { Amount Spent } \\ \text { (millions) } \end{array} \\ \hline \text { St. Louis, M0 } & \$ 6,087 & \text { Norfolk, VA } & \$ 3,228 \\\ \text { San Diego, CA } & 4,747 & \text { Marietta, GA } & 2,828 \\ \text { Pico Rivera, CA } & 3,272 & \text { Fort Worth, TX } & 2,492 \\ \text { Arlington, VA } & 3,284 & \text { Washington, DC } & 2,347 \\ \hline \end{array} $$

Ecommerce.com, a large Internet retailer, is studying the lead time (elapsed time between when an order is placed and when it is filled) for a sample of recent orders. The lead times are reported in days. $$ \begin{array}{|cc|} \hline \text { Lead Time (days) } & \text { Frequency } \\ \hline 0 \text { up to } 5 & 6 \\ 5 \text { up to } 10 & 7 \\ 10 \text { up to } 15 & 12 \\ 15 \text { up to } 20 & 8 \\ 20 \text { up to } 25 & \frac{7}{40} \\ \text { Total } & 40 \\ \hline \end{array} $$ a. How many orders were studied? b. What is the midpoint of the first class? c. What are the coordinates of the first class for a frequency polygon? d. Draw a histogram. e. Draw a frequency polygon. f. Interpret the lead times using the two charts.

In May 2004,18.5 percent of the Prime Time TV viewing audience watched shows on \(\mathrm{ABC}\), 25.9 percent on CBS, 18.5 percent on Fox, 18.5 percent on \(\mathrm{NBC}, 7.4\) percent on Warner Brothers, and 7.4 percent on UPN. You can find the latest information on TV viewing from the following website: http://tv.zap2it.com/news/ratings/. Develop a pie chart or a bar chart to depict this information. Write a paragraph summarizing the information.

The following is the number of minutes to commute from home to work for a sample of aerospace workers in Houston, Texas. $$ \begin{array}{|lllllllllllll|} \hline 28 & 25 & 48 & 37 & 41 & 19 & 32 & 26 & 16 & 23 & 23 & 29 & 36 \\ 31 & 26 & 21 & 32 & 25 & 31 & 43 & 35 & 42 & 38 & 33 & 28 & \\ \hline \end{array} $$ a. How many classes would you recommend? b. What class interval would you suggest? c. What would you recommend as the lower limit of the first class? d. Organize the data into a frequency distribution. e. Comment on the shape of the frequency distribution.
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