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Question 14

An aerospace engineer is testing the flight systems of a new cargo drone. They collect data on the battery temperature, $T$ (in $∘C^\circ\text{C}$ ), and the drone's energy efficiency index, $E$ (measured on a scale from 1 to 100), during ten different flights.

Table 1: Drone battery temperature and energy efficiency index

Battery temperature, $T$ ( $∘C^\circ\text{C}$ )	Energy efficiency index, $E$
22.5	92
28.0	85
35.5	74
41.0	68
48.5	55
52.0	52
60.5	39
65.0	33
72.5	22
78.0	14

What does the data in Table 1 suggest about the relationship between the battery temperature and the energy efficiency index? Explain your answer.

[2]

Markscheme

Correlations Questions

A Level
Psychology
Correlations

19 exam-style questions on AQA A Level Psychology Correlations. Each one has a worked solution and a mark scheme showing where the marks go.

Correlations

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Correlations

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Question 14

Table 1: Drone battery temperature and energy efficiency index

Battery temperature, $T$ ( $∘C^\circ\text{C}$ )	Energy efficiency index, $E$
22.5	92
28.0	85
35.5	74
41.0	68
48.5	55
52.0	52
60.5	39
65.0	33
72.5	22
78.0	14

What does the data in Table 1 suggest about the relationship between the battery temperature and the energy efficiency index? Explain your answer.

[2]

Markscheme

Correlations Questions

A Level
Psychology
Correlations

19 exam-style questions on AQA A Level Psychology Correlations. Each one has a worked solution and a mark scheme showing where the marks go.