1. Mathsercise-C Pie Charts and Scatter Graphs Ready? Here we go!

2. Pie Charts & Scatter Graphs 60 students were asked “What do you want to do next year?” Their replies are shown in the pie chart 1 120 o 60 o Sixth Form College Don’t Know How many students hoped to go to college? Answer Question 2 Calculate what proportion of the circle represents college 360 ÷ 120 = 1 3 1 3 x 60 =20 students

3. Forty students took the maths GCSE last year 2 Grade ‘B’ – 3 Grade ‘C’ – 15 Grade ‘D’ – 14 Grade ‘E’ - 8 If these results were shown in a pie chart, what is the size of angle for each grade? Answer Question 3 40 = 360 o Now work out the multiplier x 9 27 o 135 o 126 o 72 o Pie Charts & Scatter Graphs

4. 3 Here is a scatter graph. One axis is labelled ‘Height’ a) For this graph state the type of correlation x x xx x xx x x x x x x x x x x x x b) From the list below, circle the most appropriate label for the other axis GCSE Maths Mark No. of cousins Size of feetColour of eyes Answer Question 4 Positive (going upwards!) Pie Charts & Scatter Graphs

5. For each scatter graph, sketch in probable correlations 4 Height Colour of eyes Height Age (up to 10) Answer Start x x x x x x x x x x x x x x x x x x x x x x x x x x Pie Charts & Scatter Graphs