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Measures of Location and Spread

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Question 6

The battery lives, x x\,x hours, of 40 rechargeable batteries were measured.

For these batteries ∑x=760∑x2=14960\sum x = 760 \quad \sum x^2 = 14960∑x=760∑x2=14960

Calculate the mean and the standard deviation for these data.

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Markscheme

Measures of Location and Spread Questions

  1. AS Level
  2. /Maths
  3. /Measures of Location and Spread

32 exam-style questions on Edexcel AS Level Maths Measures of Location and Spread, covering 2.1 Measures of Central Tendency, 2.2 Other Measures of Location, 2.3 Measures of Spread, 2.4 Variance and Standard Deviation, and 2.5 Coding. Each one has a worked solution and a mark scheme showing where the marks go.

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