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2 Statistics

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Question 151

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 Statistics Questions

  1. A Level
  2. /Maths
  3. /2 Statistics

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