Course home

2.2.2 Scatter diagrams and correlation

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116

Question 8

A student records the mass, in hundreds of kilograms, and the CO $_2\,$ emission, in g/km, of 48 cars. The results are shown in the scatter diagram below.

Figure for question 3

State what the diagram shows about the 48 cars.

[1]

The student fits a single regression line to all 48 points. Explain why this line would be misleading.

[2]

State what the student should do instead, and state the extra information needed to do it.

[2]

Markscheme

2.2.2 Scatter diagrams and correlation Questions

A Level
Maths
2.2.2 Scatter diagrams and correlation

157 exam-style questions on AQA A Level Maths 2.2.2 Scatter diagrams and correlation. Each one has a worked solution and a mark scheme showing where the marks go.

2.2.2 Scatter diagrams and correlation

Question bank

2.2.2 Scatter diagrams and correlation

Easy Medium Hard

Question 8

A student records the mass, in hundreds of kilograms, and the CO $_2\,$ emission, in g/km, of 48 cars. The results are shown in the scatter diagram below.

Figure for question 3

State what the diagram shows about the 48 cars.

[1]

The student fits a single regression line to all 48 points. Explain why this line would be misleading.

[2]

State what the student should do instead, and state the extra information needed to do it.

[2]

Markscheme

2.2.2 Scatter diagrams and correlation Questions

A Level
Maths
2.2.2 Scatter diagrams and correlation

157 exam-style questions on AQA A Level Maths 2.2.2 Scatter diagrams and correlation. Each one has a worked solution and a mark scheme showing where the marks go.