**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

(c) Is it possible to present the above information using line graph? Justify your answer.

courtesy of Ms LohKY

edited by Mr Johari

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ReplyDeleteThis comment has been removed by the author.

ReplyDeletea) 14°

ReplyDeleteb) 69%

c) No as all are in the same timing and it is not possible to classify them together, probably it would be weird.

a)27º

ReplyDeleteb)69.2%

c)No, as this information is only at the time of 7.25am and not over a long period of time.

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ReplyDeletea)27º

ReplyDeleteb)69%

c) No as we are not showing the increase of vehicles in time but the number during the certain time.

a) 28º

ReplyDeleteb) 69.2%

c) No. It is only presenting the information at the time of 7.25 am, not over a period of time.

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ReplyDeletea) 14º

ReplyDeleteb) 69.2%

c) No. The number of cars is not set over a period of time.

a) 28º

ReplyDeleteb) 69.2%

c) No. Again, Line Graphs are used to represent the information of an object or place for a duration of time, and since this information is about the number of vehicles at a certain time of day.

a) 28˚

ReplyDeleteb) 69.2%

C) No, as it is only measuring the amount of vehicles at 7.25am, not over a long period of time.

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ReplyDeletea)260º

ReplyDeleteb)69%

c)No it is not showing the number of vehicles across a period of time

a) The angle corrected to the nearest degree is 27º

ReplyDeleteb) The percentage is about 69%

c) No it is not possible as line graphs show changes in an amount of time but the information here shows a fixed amount of vehicles(numbers) at the same time, 7.25am

1)14%

ReplyDelete2)69%

3)No.The number of cars are definitely not set over a period of time.

a)8 degrees

ReplyDeleteb)69%

c)No. It cannot be represented as two figures for the pie chart

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ReplyDeletea. 18º

ReplyDeleteb. 69.2º

c. Nope, as line graphs are used to represent changes over a period of time, which does not apply for this pie chart.

a)30º

ReplyDeleteb)69%

c) no as it is not over a period if time

a) 6.92( 3 SF ) ≈ 7º

ReplyDeleteb) 69.23 ( 4 SF ) ≈ 69.2 ( 3 SF )

c) It is not possible as this graph is just showing vehicles at 7.25 am while line graph does not as it records data over a long period of time.

a) 28º

ReplyDeleteb)69.2

c) No, lines graph only shows the no. of vehicles recorded at a specific time but it does not add the vehicle up like the pie chart.

(a) 30º

ReplyDelete(b) 69.2%

(c) ) No. It is only presenting the information at one point of time of and, not over a period of time.

a) 28º

ReplyDeleteb)69.2%

c) No it is not possible as line graph is to show a change in something over time. The information here is at a certain time and not over a while.

a) motorcycle = 3

ReplyDeletetotal = 39

angle = 3/39 x 360 = 28 degrees

b) cars = 27

total = 39

percentage = 27/39 x 100% = 69.2% (3 s.f.)

c) No as there may be different vehicles arriving at the same time so it is not possible to express that in a line graph unless each vehicle type has an individual line graph to show the amount of that particular vehicles during that particular time.

a)28 degrees

ReplyDeleteb)69.2%

c)It is not possible to represent the information in a line graph. Line graphs can only be used in a period of time and the vehicles do not appear time after time.

a)27º

ReplyDeleteb)69º

c)The information is not possible to be represented in a line graph as line graphs can only represent something in a period of a time and not over a period of time