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2 Unit AS 2: Applied Mathematics

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Question 139

For 25 observations, the recorded summary statistics are ∑x=400\sum x=400∑x=400 and ∑x2=8900\sum x^2=8900∑x2=8900. It is discovered that a value of 30 was recorded as 50.

Calculate the corrected variance.

[4]
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2 Unit AS 2: Applied Mathematics Questions

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

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