Mathematics (AS & A Level) · May / June 2022 · Paper 61 · Question 1
9709
As printed in the paper
The question as text
The diameters, x millimetres, of a random sample of 200 discs made by a certain machine were recorded. The results are summarised below. n = 200 Σx = 2520 Σx2 = 31852
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1(a)[6]
1(b)[1]
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