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2 Unit AS 2: Applied Mathematics

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Question 249

The number of faults found on 14 circuit boards is summarised below. The mean number of faults is 3314\dfrac{33}{14}1433​.

Number of faults, xxx1234
Frequency, fff3542
a.

Calculate the variance.

[2]
b.

Interpret the corresponding standard deviation in context.

[1]
Markscheme

2 Unit AS 2: Applied Mathematics Questions

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

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