# 6.8.1. Representing the Statistical Data by Using Circular Sectors

The figure below shows some students' favourite subjects at a school. What is the percentage of the students who like English?

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The following table shows the production percentage of three types of electric water heaters of a factory:

 Type of Heater Percentage of Production First Second Third 70% 15% 15%

If the total production is 1 300 heaters, find the number of heaters of the first type.

• A 70 heaters
• B 195 heaters
• C 15 heaters
• D 910 heaters
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A family spends its monthly income as follows: 35% for the food, 30% for house rent, 25% for the expenses, and the remainder is saved. If the family saves LE per month, determine its monthly income.

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A family spends its monthly income as follows: 45% for the food, 25% for house rent, 20% for the expenses, and the remainder is saved. If the monthly income of the family is LE, how much will the family save in one year?

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Knowing that the figure below shows the sports played by 1 800 members in a club, determine how many members prefer playing tennis.

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The figure below shows the sports preferences of members in a club. Determine the percentage of the members who prefer handball.

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The following table shows the number of hours some students spend watching TV programs:

 Program Number of Hours Entertainment Cultural News Drama Sports 11 5 3 6 15

What’s the least popular program among the students?

• AEntertainment
• BCultural
• CDrama
• DNews
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The following figure below shows the grades of 30 students in an exam. What is the central angle of the students who got a grade of excellent?

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The figure below shows the grades of students in an exam. What is the percentage of the students who got a grade of very good?

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The figure below shows the hobbies of students in the same classroom. What is the percentage of students who prefer swimming?

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The figure below shows the favorite hobbies of some students. What is the most popular hobby among them?

• Bmusic
• Cswimming
• Dpodcasting
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The figure below shows the results of a survey conducted on some students’ favorite hobbies. What is the measure of the central angle of the students who prefer swimming?

• A
• B
• C
• D
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The pie chart below shows the results of a survey on the fruit preferences of 30 students in a class. How many students love peaches?

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The figure below shows a survey on 100 students' favourite fruit. How many students like oranges and peaches?

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The figure below shows a survey on some students' favorite fruits, determine the fraction of students who prefer oranges and peaches.

• A
• B
• C
• D
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The figure represents a survey on some students' favorite fruits. Determine the fraction of students who prefer oranges and apples.

• A
• B
• C
• D
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Using the following table, which shows the percentages of the total chicken production of four farms in a month, find the percentage of the fourth one.

 Farm Production Percentages First Second Third Fourth

• A
• B
• C
• D
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The following table shows the percentages of chicken production in four farms:

 Farm Percentage First Second Third Fourth

Which farm produces more chicken?

• Athird
• Bfourth
• Csecond
• Dfirst
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The following table shows the expenditure percentages of a family’s monthly income:

 Expenditure Percentage Rent Food Others Saving

Complete the table given that the family's monthly income is LE.

• A
• B
• C
• D
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The following table shows the success percentages of five 6th grade classes in a mathematics test:

 Class Percentage of Success A B C D E

Which class has the highest success percentage?

• Aclass B
• Bclass E
• Cclass D
• Dclass C
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