Week 21 Pie Charts and Scatter Graphs

pie charts and scatter graphs

1. To be able to read a pie chart 2. To be able to create a pie chart 3. ​ To be able to interpret scatter graphs

While you wait

1. Angles at a point always add up to?
2. What will be the angle on the diagram showing how many people took the bus?
3. If 270 drove to work, how many walked?
4. Find 2/5 of 360
5. In another survey 40% of people drove to work, what would be the angle for the section of the piechart showing this?

Extension

In another survey, 4/9 of people walked; 1/3 took the bus. What would be the angle for the section of the piechart showing how many people drove?

Reading Pie Charts

Reading Pie Charts

Reading Pie Charts

Reading Pie Charts

Reading Pie Charts

Reading Pie Charts

Drawing Pie Charts

1. What is wrong with this pie chart?
2. What should each angle be?

Drawing Pie Charts

Exam Questions

1. Calculate the angles for each flavour.
2. What would you have to include on your pie chart to get full marks?
3. There are 4 marks available, what do you think each mark is for?

Exam Questions

Century

Time to try some questions yourself on Century

Interpreting pie charts (MF50.11) Creating pie charts (MF50.09)

Activity 3

Scatter Graphs

1. Write down all the different types of correlation there are - there are three!
2. What type of correlation is this?
3. One of the points is an outlier, write down it's co-ordinates and explain what an outlier is.
4. What is a line of best fit?
5. Billy buys a car with a 3 litre engine, estimate how many km he can travel per litre of petrol.
6. Lucia said if she bought a 5 litre vehicle it would only do 6 km per litre. Is she correct?

Now complete the worksheet on OneNote