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2.2 Data Presentation and Interpretation

2.2 Data Presentation and Interpretation

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Question 14

At Heathrow, total daily sunshine s s\,s hours is modelled from temperature ttt °C by

s=0.25t+1.3s=0.25t+1.3s=0.25t+1.3.

a.

Interpret the coefficient 0.25 in context.

[2]
b.

Estimate the sunshine duration when the temperature is 20 °C.

[1]
c.

State one reason why this estimate need not equal the observed sunshine duration on a particular day.

[1]
Markscheme

2.2 Data Presentation and Interpretation Questions

  1. A Level
  2. /Maths
  3. /2.2 Data Presentation and Interpretation

121 exam-style questions on OCR (MEI) A Level Maths 2.2 Data Presentation and Interpretation, covering 2.2.1 Types of data and standard diagrams, 2.2.2 Area in a histogram is proportional to frequency, 2.2.3 Cumulative frequency diagram, 2.2.4 Describe frequency distributions, 2.2.5 Samples and theoretical distributions, 2.2.6 Interpret a scatter diagram, 2.2.7 Distinct sections and outliers in scatter diagrams, 2.2.8 Correlation and causation, 2.2.9 Select or critique data presentation techniques, 2.2.10 Measures of central tendency, 2.2.11 Simple measures of spread, 2.2.12 Variance and standard deviation, 2.2.13 Outliers, 2.2.14 Cleaning data, and 2.2 Data Presentation and Interpretation. Each one has a worked solution and a mark scheme showing where the marks go.

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