![[C+] Describing Pie Charts](https://images.ctfassets.net/r30ratzbtbbf/6MOaS9qShzDeaZ3PUhrAzc/63859b92d7aa975eb8509fee99767616/Describing_Pie_Charts.png)
LET'S LEARN! 📚
HOW TO CREATE A PIE CHART
Formula
▪️ The pie chart is an important type of data representation. It contains different segments and sectors in which each segment and sector of a pie chart forms a specific portion of the total (percentage). The sum of all the data is equal to 360°.
The total value of the pie is always 100%.
To work out with the percentage for a pie chart, follow the steps given below:
1. Categorize the data
2. Calculate the total
▪️ To work out the percentage for a pie chart, follow the steps given below:
Imagine a teacher surveys her class on the basis of favorite Sports of Students.
Step 1 : Enter the data into the table.
Step 2 : Add the values in the table to get the total
| Football | Hockey | Cricket | Basketball | Badminton | Total |
|---|---|---|---|---|---|
| 10 | 5 | 5 | 10 | 10 | 40 |
Step 3: Divide the each value by the total and multiply by 100 to get a percent
| Football | Hockey | Cricket | Basketball | Badminton |
|---|---|---|---|---|
| (10/40) x 100 = 25% | (5/40) x 100 = 12.5% | (5/40) x 100 = 12.5% | (10/40) x 100 = 25% | (10/40) x 100 = 25% |
Step 4 : Next, to know how many degrees for each "pie sector" we need, we will take a full circle of 360° and follow the calculations below
| Football | Hockey | Cricket | Basketball | Badminton |
|---|---|---|---|---|
| (10/40) x 360° = 90° | (5/40) x 360° = 45° | (5/40) x 360° = 45° | (10/40) x 360° = 90° | (10/40) x 360° = 90° |
LET'S READ! 📖
DESCRIBING PIE CHARTS
The pie chart primarily illustrates how different parts make up a whole. The best way to present your data in a pie chart is to compare each "slice" of the chart to the others to determine what to share of the total category has.
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It is clear that represents the largest portion of , whereas is undoubtedly the smallest.
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Sales of stood at % in 1925, which is the majority of .
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(If the percentage is around 60%) - Nearly a third...
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(If the percentage is around 52%) - Over a half of all respondents..
Here are a few examples of good wording for the largest section of your pie charts:
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A small fraction..
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Exactly 30% of students..
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(If the percentage is around 25%) Roughly a quarter of respondents
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...whereas sales for ______ were just 10%
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In 1995 approximately three quarters were _____, whereas in 1960 this had fallen to just under a fifth.
Here are a few examples of good wording for the smallest section of your pie chart:
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a half, 50%, 1/2
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a third, 33%, 1/3
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two thirds, 66%, 2/3
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three quarters, 75%, 3/4
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a quarter, 25%, 1/4
Written forms of percentages and fractions look like this:
This graph shows the results of a survey in which people aged 16 and over were asked about their preferred devices for accessing the internet. The question referred to going online at home and in other places. Participants mentioned four main devices in their answers: a smartphone, a laptop, a tablet, and a desk computer.
From the pie chart, it is clear that the majority of participants prefer to use smartphones and laptops, with just 3% difference between the two. Nearly a third of participants prefer to go online with a smartphone. 30% like to use a laptop. A desktop computer accounts for 14% of user's preferred devices. Only a small minority prefer a device other than these main four.
In conclusion, since mobile and portable devices are the most popular choices, it is clear that many participants are accessing the internet outside their homes. The desktop computer is the least popular of the four main devices. In the future, we can probably expect to see more people accessing the internet with smartphones as their preferred choice.
QUESTIONS
1. According to the survey results, which two devices are the most preferred for accessing the internet among participants aged 16 and over?
2. What can be concluded about the popularity of portable devices?
LET'S PRACTICE! 📝
👂🏻 Listening Exercise
Direction: Listen to the audio and answer the question that follows.
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How much increase did the construction sector experience from 2000 to 2016?
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Describe the changes in the agricultural sector's contribution to Turkey's economy between 2000 and 2016.
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Which sectors have remained constant in both years?
🗣 Speaking Exercise
Direction: Look at the pie chart below and explain the data presented using the words and phrases that you learned.
