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Question 112

Thirty race times x x\,x minutes satisfy ∑x=466\sum x=466∑x=466 and ∑x2=7592\sum x^2=7592∑x2=7592.

Calculate the mean and the sample standard deviation.

[3]
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2 Statistics Questions

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

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