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2.2 L: Data presentation and interpretation

2.2 L: Data presentation and interpretation

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Question 4
73%

30 people ran a race and their race times, xxx, were recorded.

For these people ∑x=466∑x2=7592\sum x = 466 \quad \sum x^2 = 7592∑x=466∑x2=7592

Calculate the mean and the standard deviation for these data.

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Markscheme

2.2 L: Data presentation and interpretation Questions

  1. A Level
  2. /Maths
  3. /2.2 L: Data presentation and interpretation

244 exam-style questions on AQA A Level Maths 2.2 L: Data presentation and interpretation, covering 2.2.1 Single-variable data diagrams, 2.2.2 Scatter diagrams and correlation, 2.2.3 Central tendency, variation and standard deviation, 2.2.4 Outliers and cleaning data, and 2.2 L: Data presentation and interpretation. Each one has a worked solution and a mark scheme showing where the marks go.

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