Mathematics (AS & A Level) · Oct / Nov 2019 · Paper 72 · Question 3
9709
As printed in the paper
The question as text
The masses, in grams, of bags of flour are normally distributed with mean -. The masses, m grams, of a random sample of 50 bags are summarised by Σm = 25 110 and Σm2 = 12 610 300.
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3(i)[6]
3(ii)[1]
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