Mathematics (AS & A Level) · Oct / Nov 2017 · Paper 61 · Question 7
9709
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The weight, in grams, of pineapples is denoted by the random variable X which has a normal distribution with mean 500 and standard deviation 91.5. Pineapples weighing over 570 grams are classified as ‘large’. Those weighing under 390 grams are classified as ‘small’ and the rest are classified as ‘medium’.
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7(i)[5]
7(ii)[3]
7(iii)[5]
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