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Mathematics (AS & A Level) · Oct / Nov 2025 · Paper 62 · Question 6

9709

As printed in the paper

The question as text

The weekly profit, in dollars, made by a certain firm has a normal distribution. In the past, the weekly profit had the distribution N(736, 262). Following a change in management, the mean weekly profit for 35 randomly chosen weeks is $725.

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Show the answer and mark scheme
  • 6(a)[6]

  • 6(b)[1]

  • 6(c)[5]

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