12.2.3 Measures of Central Tendencies, PT3 Focus Practice
Question 6:
Diagram below is a pie chart which shows the proportion of money allocated to five clubs.
![](http://pt3mathematics.blog.onlinetuition.com.my/wp-content/uploads/sites/6/2017/01/Picture56.png)
![](http://pt3mathematics.blog.onlinetuition.com.my/wp-content/uploads/sites/6/2017/01/Picture56.png)
The total amount of money allocated to Swimming Club and Squash Club is RM1800.
Calculate the total amount of money allocated to the five clubs.
Solution:
Sum of the angles of the sectors for Swimming Club and Squash Club
= 360o – 65o – 85o – 90o
= 120o
Total amount of money allocated to the five clubs
Question 7:
Table below shows the number of students who watch four different TV channels in a week.
TV Channels
|
Number of Students
|
News
|
8
|
Sports
|
15
|
Movies
|
25
|
Music
|
12
|
The information for sports channel is shown fully in the pie chart in the answer space.
Complete the pie chart to represent all the information in the Table.
Answer:
![](http://pt3mathematics.blog.onlinetuition.com.my/wp-content/uploads/sites/6/2017/01/Picture87-300x295.png)
Solution:
Total number of students
= 8 + 15 + 25 + 12 = 60
![](http://pt3mathematics.blog.onlinetuition.com.my/wp-content/uploads/sites/6/2017/01/Picture88.png)