Tuesday, March 29, 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

24 comments:

  1. This comment has been removed by the author.

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  2. This comment has been removed by the author.

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  3. a) 28º
    b) 69.2%
    c) No, it is not. A line graph is for representing trends, not for displaying the numbers of certain objects.

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  4. a)28º
    b)69.2%
    c)No,it will not be possible to present a clear diagram and an understandable,so it is not possible to present the above information using line graph

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  5. (a)28deg
    (b)69.2%
    (c)no it is not. As a line graph can only track the progress of a certain object over a span of time, it is not possible as we are trying to calculate all 5 objects.

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  6. (a) 30 degrees
    (b) 80.129 degrees
    (c) No... as line graph is used for time

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  7. a)18 degree
    b)69.2
    c) yes becasue they can be represented individually so it is able to

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  8. (a) 27º
    (b) 69.2%
    (c) No, as the amount there is not present.

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  9. (a)27 degrees
    (b)69.2%
    (c)Yes, It is possible. The numbers can still be represented.

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  10. a) 28

    b) 69.2%

    c) no, this is for a certain instant but line graphs are for stuff over time

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  12. (a) 13deg
    (b) 69.2
    (c) no as the result is only interested in result not the increasing or decreasing trend

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  14. a)28º
    b)69.3%
    c)No,because a line graph shows what happens over a period not for showing numbers

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  15. a) 28º
    b) 69.2%
    c) No. A line graph is used to represent information over a period of time and this information is given at an instantaneous moment so it is not suitable.

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  16. a)28º
    b)69.2%
    c)Yes. As, the numbers can be presented over the lines

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  17. a)28
    b)69.2%
    c)No as the line graph is used to show the trend in a amount of time

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  18. a) 28º
    b) 69.2%
    c) no, this data presents a few things at a moment, not over a period of time, whereas line graphs present a thing over a period of time.

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  19. (a)28˚
    (b)69.2%
    (c)No, as line graphs present the information over a period of time.

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  20. a)28º
    b) 69.2%
    c)No it is not able to. Line Graphs are used to represent changes over a period of time not measure how many types of objects there are.

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  21. a)28˚
    b)69.2%
    c)No.This happened at the same time while line graph is represents over a period of time.

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  22. (a) 28º
    (b) 69.2%
    (c) No. Line Graph is used to present information over a period of time but this data is only recorded at 7.25am.

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  23. (a) 28º
    (b) 69.2%
    (c) No I do not think that it is possible as line graphs are supposed to express the data over a period of time, which is not appropriate for his situation.

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  24. a) 28%
    b) 69.2%
    c)No.Line graph can only be used to measure the number of vehicles over time .

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