Interpreting pie charts
I can interpret pie charts.
Interpreting pie charts
I can interpret pie charts.
These resources will be removed by end of Summer Term 2025.
Lesson details
Key learning points
- Knowing the angle size for a sector allows calculation of the frequency.
- By knowing the total, statements can be made comparing the data.
- Different pie charts may have different totals even though proportions are the same.
Keywords
Pie chart - A pie chart (pie graph) is a circular graph where sectors represent different groups proportionally.
Frequency - The frequency is the number of times an event occurs; or the number of individuals (people, animals etc.) with some specific property.
Sector - A sector is the region formed between two radii and their connecting arc.
Proportion - Proportion is a part to whole (sometimes part to part) comparison. If two things are proportional, the ratio of part to whole is maintained
Degrees - Degrees are the most common unit of measurement for angle. One whole turn is equal to 360 degrees, written 360°.
Common misconception
Two sectors on two different pie charts that have the same angle represent the same frequency.
90° of a pie chart of 4 data points represents less frequency (frequency of 1) than 90° of a pie chart of 200 data points (frequency of 50).
Licence
Starter quiz
6 Questions
![An image in a quiz](/_next/image?url=https%3A%2F%2Foaknationalacademy-res.cloudinary.com%2Fimage%2Fupload%2Fv1698136985%2Fens0azhpvguwuzuseefc.png&w=1080&q=75)
![An image in a quiz](/_next/image?url=https%3A%2F%2Foaknationalacademy-res.cloudinary.com%2Fimage%2Fupload%2Fv1698136985%2Fens0azhpvguwuzuseefc.png&w=1080&q=75)
![An image in a quiz](/_next/image?url=https%3A%2F%2Foaknationalacademy-res.cloudinary.com%2Fimage%2Fupload%2Fv1698136986%2Fb1zkm2nfprhdaxsqxz5i.png&w=640&q=75)
a -
120
b -
360
c -
3
d -
54
e -
132
![An image in a quiz](/_next/image?url=https%3A%2F%2Foaknationalacademy-res.cloudinary.com%2Fimage%2Fupload%2Fv1698136988%2Fs97adjtld8ffo1ny1mlu.png&w=640&q=75)
Exit quiz
6 Questions
![An image in a quiz](/_next/image?url=https%3A%2F%2Foaknationalacademy-res.cloudinary.com%2Fimage%2Fupload%2Fv1698136997%2Fd60t7jagwsdfmtj5ynrh.png&w=640&q=75)
![An image in a quiz](/_next/image?url=https%3A%2F%2Foaknationalacademy-res.cloudinary.com%2Fimage%2Fupload%2Fv1698136996%2Fbnspc2j1voz1vpmtmt9v.png&w=640&q=75)
![An image in a quiz](/_next/image?url=https%3A%2F%2Foaknationalacademy-res.cloudinary.com%2Fimage%2Fupload%2Fv1698136996%2Fbnspc2j1voz1vpmtmt9v.png&w=640&q=75)
![An image in a quiz](/_next/image?url=https%3A%2F%2Foaknationalacademy-res.cloudinary.com%2Fimage%2Fupload%2Fv1698136998%2Fsyxnlrug5rmfevhz1suu.png&w=640&q=75)
a -
4
b -
128
c -
72
d -
18
e -
90
![An image in a quiz](/_next/image?url=https%3A%2F%2Foaknationalacademy-res.cloudinary.com%2Fimage%2Fupload%2Fv1698136966%2Fpynn0idhtuaapl1uq0fe.png&w=828&q=75)
![An image in a quiz](/_next/image?url=https%3A%2F%2Foaknationalacademy-res.cloudinary.com%2Fimage%2Fupload%2Fv1698136966%2Fpynn0idhtuaapl1uq0fe.png&w=828&q=75)