Pie charts (OCR GCSE Maths): Flashcards

📚Flashcards
Pie charts
Sign up to keep revising.Create a free account to study more flashcards and track your progress.

Practise the cards

12 cards from this deck

Show

What percentage does a whole pie chart represent?

100%

How many degrees in a complete pie chart?

360°360°

Formula: degrees per item in pie chart

360°Total items\frac{360°}{\text{Total items}}

Formula: angle for each category

Frequency×Degrees per item\text{Frequency} \times \text{Degrees per item}

Sum of all angles in pie chart must equal

360°360°

Tool used to measure angles when drawing pie chart

Protractor

What CAN pie charts show about categories?

Most popular or least popular category

Can pie charts show exact numbers without raw data?

No

Can pie chart alone tell total number surveyed?

No

Formula to interpret pie chart segments

Angle360°=SegmentTotal\frac{\text{Angle}}{360°} = \frac{\text{Segment}}{\text{Total}}

Formula: number in segment from angle

(Angle360°)×Total(\frac{\text{Angle}}{360°}) \times \text{Total}

Starting line angle when drawing pie chart

0° (horizontal line to the right)

Join 100,000+ GCSE students studying Flashcards with us.

Select your subjects, and get access to A+ resources today.