2 Unit 2: Applied Mathematics A

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Question 85

For a sample of vehicles, the regression line predicting fuel use $f\,$ litres from distance $d\,$ km is $f = 0.071 d + 1.8$ , using distances from 12 km to 240 km.

a.

Interpret both coefficients.

[3]

b.

Estimate the fuel use for 180 km.

[2]

c.

Critique a prediction for 500 km.

[1]

2 Unit 2: Applied Mathematics A

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Question 85

For a sample of vehicles, the regression line predicting fuel use $f\,$ litres from distance $d\,$ km is $f = 0.071 d + 1.8$ , using distances from 12 km to 240 km.

a.

Interpret both coefficients.

[3]

b.

Estimate the fuel use for 180 km.

[2]

c.

Critique a prediction for 500 km.

[1]

2 Unit 2: Applied Mathematics A

Question 85

Markscheme

2 Unit 2: Applied Mathematics A

Question 85

Markscheme

2 Unit 2: Applied Mathematics A

Question 85

2 Unit 2: Applied Mathematics A Questions

2 Unit 2: Applied Mathematics A

Question 85

2 Unit 2: Applied Mathematics A Questions