Posted In: KS3 , Class IX maths
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Pie Chart Definition:

  • A pie chart (or a circle diagram) is a circular factual realistic, which is separated into cuts to delineate numerical extent. 
  • In a pie graph, the circular segment length of every cut (and subsequently its focal edge and region), is corresponding to the amount it speaks to. 
  • While it is named for its similarity to a pie which has been cut, there are minor departure from the way it can be exhibited.

Pie Chart Explanation:

  • Pie graphs are generally utilized as a part of the business world and the mass media. However, they have been criticized and numerous specialists prescribe maintaining a strategic distance from them, bringing up that exploration has demonstrated it is hard to think about various segments of a given pie outline, or to look at information crosswise over various pie diagrams. Pie graphs can be supplanted by and large by different plots, for example, the bar diagram, box plot or dab plots. 
  • In some extremely uncommon occurrences, pie outlines can be found in square shape. 
  • These sorts of pie diagrams are once in a while alluded to as "pizza graphs", as the square takes after the state of a pizza box. These square pie outlines fill an indistinguishable need from round pie graphs and all rates are taken from a 100% aggregate.

Pie Chart Example:

  • The accompanying case outline depends on preparatory aftereffects of the race for the European Parliament in 2004. The table records the quantity of seats dispensed to every gathering bunch, alongside the inferred rate of the aggregate that they every make up. The qualities in the last segment, the inferred focal edge of every segment, is found by increasing the rate by 360°.
     

Group

SEATS

PERCENT (%)

CENTRAL ANGLE (°)

EUL

39

5.3

19.2

PES

200

27.3

98.4

EFA

42

5.7

20.7

EDD

15

2.0

7.4

ELDR

67

9.2

33.0

EPP

276

37.7

135.7

UEN

27

3.7

13.3

Other

66

9.0

32.5

Total

732

99.9

360.2

                             

  • The measure of every focal point is relative to the span of the comparing amount, here the quantity of seats. Since the entirety of the focal points must be 360°, the focal plot for an amount that is a division Q of the aggregate is 360Q degrees. In the illustration, the focal plot for the biggest gathering (European People's Party (EPP)) is 135.7° on the grounds that 0.377 times 360, adjusted to one decimal place, meets 135.7.

Pie Chart Excel:

We can see pie chart in excel in the following video whose link is given below:

  • Excel is the best base for making a pie chart as it is divided into rows and columns by default. So you can easily put your data in these rows and columns and can easily manage your whole data as shown in video. 
  • You can make your own excel sheet and can easily make sure that your data is saved, secured and most importantly managed. 
  • In excel sheet you can also draw pie circle or diagram by visiting insert button. And this pie circle will be made on the basis of your pie chart. And will contain all the data you have given in your chart. And you can also easily edit that pie circle by just clicking few simple buttons. This is a great ease for a user to manage his big data.
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