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Data handling and analysis

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Question 39

Figure 1

Histogram showing frequency density against PM2.5 concentration

An environmental scientist measures the concentration of fine particulate matter (PM2.5PM_{2.5}PM2.5​, in μg/m3\mu\text{g/m}^3μg/m3) at an urban monitoring station over a period of several weeks. Since the data is highly skewed with varying group widths, the scientist displays the results in the graph shown in Figure 1.

Identify the type of graph shown in Figure 1 and explain why this is an appropriate graph to use for the data collected.

[3]

Data handling and analysis Questions

  1. A Level
  2. /Psychology
  3. /Data handling and analysis

Practise AQA A Level Psychology Data handling and analysis with exam-style questions for A Level Psychology. 263 questions, matched to the AQA A Level Psychology (7182) specification and written in Paper 1, Paper 2 and Paper 3 style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.

Question bank