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Question 500

A data set contains 40 values. Its mean is 12.5 and its variance is 9.

a.

Find ∑x\sum x∑x.

[1]
b.

Find ∑x2\sum x^2∑x2.

[3]
Markscheme

2 Statistics Questions

  1. A Level
  2. /Maths
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