Data representation
AQA GCSE Maths revision on Data representation. Aligned to the AQA GCSE Mathematics 8300 specification. This bank has 16 practice questions on this topic.
Sample questions (3 of 16)
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Question 1
Positive correlation means: as x increases, y...
- A) increases
- B) decreases
- C) stays the same
- D) fluctuates
Show answer
Answer: increases
Positive correlation appears as an upward trend on a scatter graph: as x increases, y tends to increase too.
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Question 2
On a pie chart, what fraction does an angle of 90 degrees represent?
- A) 1/2
- B) 1/3
- C) 1/4
- D) 1/8
Show answer
Answer: 1/4
Pie charts use 360 degrees to represent the whole. An angle of 90 degrees therefore represents 90/360 = 1/4.
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Question 3
On a scatter graph showing income vs years of education, the correlation is likely...
- A) Positive
- B) Negative
- C) None
- D) Cubic
Show answer
Answer: Positive
Empirically, more years of education correlates with higher income on average. Positive correlation - upward trend on scatter graph.
Want to test yourself on the remaining cards for this topic?
13 more questions on Data representation — plus mistakes tracking and spaced repetition across the whole Maths spec.