Maths Gcse Edexcel Foundation
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Scatter-Graphs-And-Correlation Edexcel Foundation2 主题
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Statistical-Diagrams Edexcel Foundation8 主题
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Comparing-Statistical-Diagrams Edexcel Foundation
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Reading-And-Interpreting-Statistical-Diagrams Edexcel Foundation
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Time-Series-Graphs Edexcel Foundation
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Pie-Charts Edexcel Foundation
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Frequency-Polygons Edexcel Foundation
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Bar-Charts-And-Pictograms Edexcel Foundation
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Tally-Charts-And-Frequency-Tables Edexcel Foundation
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Stem-And-Leaf-Diagrams Edexcel Foundation
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Comparing-Statistical-Diagrams Edexcel Foundation
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Statistics-Toolkit Edexcel Foundation7 主题
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Tree-Diagrams-And-Combined-Probability Edexcel Foundation2 主题
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Simple-Probability-Diagrams Edexcel Foundation4 主题
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Probability-Toolkit Edexcel Foundation3 主题
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Transformations Edexcel Foundation4 主题
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Vectors Edexcel Foundation3 主题
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Volume-And-Surface-Area Edexcel Foundation3 主题
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Circles-Arcs-And-Sectors Edexcel Foundation3 主题
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Area-And-Perimeter Edexcel Foundation4 主题
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Pythagoras-And-Trigonometry Edexcel Foundation5 主题
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Congruence-Similarity-And-Geometrical-Proof Edexcel Foundation5 主题
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Bearings-Scale-Drawing-Constructions-And-Loci Edexcel Foundation5 主题
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2D-And-3D-Shapes Edexcel Foundation4 主题
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Angles-In-Polygons-And-Parallel-Lines Edexcel Foundation5 主题
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Geometry-Toolkit Edexcel Foundation4 主题
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Exchange-Rates-And-Best-Buys Edexcel Foundation2 主题
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Standard-And-Compound-Units Edexcel Foundation5 主题
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Direct-And-Inverse-Proportion Edexcel Foundation1 主题
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Ratio-Problem-Solving Edexcel Foundation2 主题
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Ratio-Toolkit Edexcel Foundation3 主题
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Sequences Edexcel Foundation4 主题
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Solving-Inequalities Edexcel Foundation3 主题
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Real-Life-Graphs Edexcel Foundation4 主题
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Graphs-Of-Functions Edexcel Foundation3 主题
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Linear-Graphs Edexcel Foundation3 主题
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Coordinate-Geometry Edexcel Foundation3 主题
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Functions Edexcel Foundation1 主题
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Forming-And-Solving-Equations Edexcel Foundation2 主题
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Simultaneous-Equations Edexcel Foundation1 主题
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Solving-Quadratic-Equations Edexcel Foundation1 主题
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Linear-Equations Edexcel Foundation3 主题
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Algebraic-Reasoning Edexcel Foundation1 主题
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Rearranging-Formulas Edexcel Foundation1 主题
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Factorising Edexcel Foundation3 主题
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Expanding-Brackets Edexcel Foundation2 主题
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Algebraic-Roots-And-Indices Edexcel Foundation1 主题
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Algebra-Toolkit Edexcel Foundation4 主题
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Using-A-Calculator Edexcel Foundation1 主题
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Exact-Values Edexcel Foundation1 主题
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Rounding-Estimation-And-Error-Intervals Edexcel Foundation4 主题
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Fractions-Decimals-And-Percentages Edexcel Foundation2 主题
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Simple-And-Compound-Interest-Growth-And-Decay Edexcel Foundation4 主题
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Percentages Edexcel Foundation5 主题
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Fractions Edexcel Foundation6 主题
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Multiplying-And-Dividing-Fractions Edexcel Foundation
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Adding-And-Subtracting-Fractions Edexcel Foundation
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Mixed-Numbers-And-Improper-Fractions Edexcel Foundation
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Equivalent-And-Simplified-Fractions Edexcel Foundation
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Fractions-Of-Amounts Edexcel Foundation
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Introduction-To-Fractions Edexcel Foundation
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Multiplying-And-Dividing-Fractions Edexcel Foundation
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Powers-Roots-And-Standard-Form Edexcel Foundation4 主题
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Types-Of-Number-Prime-Factors-Hcf-And-Lcm Edexcel Foundation6 主题
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Number-Toolkit Edexcel Foundation9 主题
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Counting-Principles Edexcel Foundation
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Related-Calculations Edexcel Foundation
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Multiplication-And-Division Edexcel Foundation
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Addition-And-Subtraction Edexcel Foundation
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Money-Calculations Edexcel Foundation
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Negative-Numbers Edexcel Foundation
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Place-Value Edexcel Foundation
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Order-Of-Operations-Bidmas-Bodmas Edexcel Foundation
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Mathematical-Operations Edexcel Foundation
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Counting-Principles Edexcel Foundation
Pie-Charts Edexcel Foundation
Exam code:1MA1
Pie charts
What is a pie chart?
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A pie chart is a circle divided into sectors which is used to present data
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The sectors represent different categories
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They show the relative proportions of the categories
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They do not show the actual frequencies of each category
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How do I draw a pie chart?
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This is easiest explained through an example
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The following data shows the favourite colours of a class of students
|
Colour |
Red |
Purple |
Blue |
Green |
Yellow |
Orange |
|---|---|---|---|---|---|---|
|
Students |
11 |
4 |
9 |
3 |
2 |
1 |
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Write the frequencies as fractions of the total number of students, 30
|
Colour |
Red |
Purple |
Blue |
Green |
Yellow |
Orange |
|---|---|---|---|---|---|---|
|
Students |
11 |
4 |
9 |
3 |
2 |
1 |
|
Fractions |
|
|
|
|
|
|
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Find the angles of the sectors by multiplying each fraction by 360°
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Then check all angles add up to 360°
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|
Colour |
Red |
Purple |
Blue |
Green |
Yellow |
Orange |
|---|---|---|---|---|---|---|
|
Students |
11 |
4 |
9 |
3 |
2 |
1 |
|
Fractions |
|
|
|
|
|
<img alt=”1 over 30″ data-mathml='<math ><semantics><mfrac><mn>1</mn><mn>30</mn></mfrac><annotation encoding=”application/vnd.wiris.mtweb-params+json”>{“language”:”en”,”fontFamily”:”Times New Roman”,”fontSize”:”18″,”autoformat”:true}</annotation></semantics></math>’ height=”47″ role=”math” src=”data:image/svg+xml;charset=utf8,%3Csvg%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%20xmlns%3Awrs%3D%22http%3A%2F%2Fwww.wiris.com%2Fxml%2Fmathml-extension%22%20height%3D%2247%22%20width%3D%2227%22%20wrs%3Abaseline%3D%2230%22%3E%3C!–MathML%3A%20%3Cmath%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F1998%2FMath%2FMathML%22%3E%3Cmfrac%3E%3Cmn%3E1%3C%2Fmn%3E%3Cmn%3E30%3C%2Fmn%3E%3C%2Fmfrac%3E%3C%2Fmath%3E–%3E%3Cdefs%3E%3Cstyle%20type%3D%22text%2Fcss%22%3Etext%7Bfill%3A%23000000%3B%7D%3C%2Fstyle%3E%3C%2Fdefs%3E%3Cline%20stroke%3D%22%23000000%22%20stroke-linecap%3D%22square%22%20stroke-width%3D%221%22%20×1%3D%222.5%22%20×2%3D%2223.5%22%20y1%3D%2223.5%22%20y2%3D%2223.5%22%2F%3E%3Ctext%20font-family%3D%22Times%20New%20Roman%22%20font-size%3D%2218%22%20text-anchor%3D%22middle%22%20x%3D%2213.5%22%20y%3D%2216%22%3E1%3C%2Ftext%3E%3Ctext%20font-family%3D%22Times%20New%20Roman%22%20font-size%3D%2218%22%20text-anchor%3D%22middle%22%20x%3D%2213.5%22%20y%3D%2241%22%3E30%3C%2Ftext%3E%3C%2Fsvg%3E |
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