Mathematics (AS & A Level) · May / June 2016 · Paper 73 · Question 7
9709
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The question as text
Bags of sugar are packed in boxes, each box containing 20 bags. The masses of the boxes, when empty, are normally distributed with mean 0.4 kg and standard deviation 0.01 kg. The masses of the bags are normally distributed with mean 1.02 kg and standard deviation 0.03 kg.
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7(i)[5]
7(ii)[5]
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