Mathematics (AS & A Level) · Oct / Nov 2019 · Paper 73 · Question 3
9709
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The question as text
The times, in minutes, taken by competitors to complete a puzzle have mean - and standard deviation 3. The times taken by a random sample of 10 competitors are noted and the results are given below. 25.2 26.8 18.5 25.5 30.1 28.9 27.0 26.1 26.0 24.9
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3(i)[5]
3(ii)[1]
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