1. Scatter Diagrams Example The table below lists the heights (in cm) and the shoe sizes of 12 people (all female) Height (cm) 158160161163164166 167168170171174 Shoe size 373638393740383739424140 Represent the data on a scatter diagram.

2. Example The table below shows the marks obtained by 12 pupils in a French examination and a History examination. French115914304145214981243570 History737073605450684621655630 Draw a scatter diagram to represent these results and draw on a line of best fit. Adam scored 60% in his French exam but was absent for his History exam. What mark do you estimate for him?

3. Example Twelve ‘A’ level students recently took mock examinations in Maths. Here are their marks for the two papers a)Draw a scatter diagram to represent these results and draw on a line of best fit. b)A student M scored 50 marks on Paper 1 but was absent for paper 2. Use the line of best fit to predict a score for student M on paper2. StudentABCDEFGHIJKL Paper 1222532354043454952 5960 Paper 22936 474457526252606567

4. Example Ashish compared the published price of several children’s books with the price of the same books in a discount book club catalogue. Published Price £10.00£6.00£11.00£15.00£13.00£5.00£10.00 Book Club price £7.00£4.50£8.50£11.00£9.00£4.00£8.00 a) Represent this information on a scatter diagram b) Draw on a line of best fit c) If a book has a published price of £12.50, what is the price of the same book likely to be in the catalogue?