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2 Unit 2: Applied Mathematics A

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Question 140

The CO emission x x\,x g/km of each of 50 cars is recorded. For these cars,

∑x=12.5\sum x = 12.5∑x=12.5 and ∑x2=3.205\sum x^2 = 3.205∑x2=3.205

Calculate the mean and the standard deviation of these CO emissions.

[3]
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2 Unit 2: Applied Mathematics A Questions

  1. A Level
  2. /Maths
  3. /2 Unit 2: Applied Mathematics A

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