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Mathematics (AS & A Level) · May / June 2018 · Paper 71 · Question 7

9709

As printed in the paper

The question as text

The number of absences by girls from a certain class on any day is modelled by a random variable with distribution Po0.2 . The number of absences by boys from the same class on any day is modelled by an independent random variable with distribution Po0.3 .

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Show the answer and mark scheme
  • 7(i)[3]

  • 7(ii)[2]

  • 7(iii)[7]

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