## Thursday, March 31, 2011

### Data Handling (Pie Chart)

PIE CHART
source: Worksheet 16.1 Q2

The Pie Chart below represents the traffic condition outside SST at 7.25 am on a typical morning.
(a) Find the angle of the sector representing motorcycle to the nearest degree.
(b) Find the percentage of sector representing cars, correct your answer to 3 significant figures.
(c) Is it possible to present the above information using line graph? Justify your answer.

courtesy of Ms LohKY
edited by Mr Johari

1. (a) 28 degrees
(b) 69.2%
© No. Because it could not represent data at one given time.

2. This comment has been removed by the author.

3. a) 28degrees
b) 69.2%
c) No. Line graphs show the data over a period of time, while pie charts can represent data at a certain time

4. a) 28 degree
b) 69.2 percentage
c) Yes. The pie chart has units that can be shown in the line graph.

5. a) 28 degrees
b) 69.2%
c) no, the line graph cannot express the number of each vehicles

6. a) 28 degrees
b) 69.2%
c) No, because line graphs are usually used to represent trends over a period of time.

7. a) 28 degrees
b) 69.2%
c) No, line graphs show the number of a kind of vehicle over time but not different kinds of vehicles.

8. This comment has been removed by the author.

9. This comment has been removed by the author.

10. a.28 degrees
b.69.2%
c. No, as line graphs can only represent one factor and only over a period of time unlike the information which has more than 1 factor and is not over a period of time.

11. (a)28 degrees
(b)69.2 %
(c)no. there is more than two factors.

12. 1. 28 degrees
2. around 69.2%
3. No. It is not possible because firstly, there is only one moment of time to compare and secondly, all of them cannot fit into one line graph and thirdly, we cannot compare the data in the line graph.

13. yoshiki Kaneko3/31/2011 08:39:00 PM

(a) 28 degrees
(b) 69.2
(c) No. There wouldn't be anything to put for the X axis

14. (a) 28 degrees
(b) 69.2
(c) No. Line graphs are used to show one factor over a period of time.

15. a) 28˚
b) 69.2%
c) No, line graphs are used to show data over a period of time, but a pie chart is only used to show data at one time only.

16. [a] 28 degrees
[b] 69.2%
[c] No it is not possible, there is only one factor for time to be compared although it is possible to put 2 factors and compare time.

17. (A)28 degree
(b)69.2
There it cannot represent all data at same time

18. a)28 degrees
b)69.2%
c)No,as it doesnt represent all the data

19. 28 Degrees
Approximately 69.2%
The Line graph is usually to take note of the change over a period of time.

20. a ) 28 degrees
b ) 69.2%
c ) No. It is because pie chart shows information at one specific time but line graph show the information over a period of time.

21. a.28* degrees
b.69.2%
c.It cannot be fit into a line graph because it is only showing one thing...

22. a)28 degrees
b)69.2%
c)No, it cannot represent data that at a certain time like this data.

23. 1)28 degrees
2)69.2%
3) No because this is situated in a static period of time and a line graph cannot display this.