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2 Unit AS 2: Applied Mathematics

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Question 245

The number of calls received in an hour is summarised below. The mean is 2 calls.

Number of calls, xxx01234
Frequency, fff23432
a.

Calculate the variance.

[2]
b.

Interpret the 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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