9709/72

Mathematics 9709/72October/November 2010

Cambridge A-Level · Probability & Statistics 2 · worked solutions for every part, with the mark scheme

7
questions
50
marks
75
minutes

Topics Sampling and Estimation · The Poisson Distribution · Linear Combinations of Random Variables · Hypothesis Tests · Continuous Random Variables

Q13MSampling and EstimationFree sample

In a survey of 1000 randomly chosen adults, 605 said that they used email. Calculate a 90% confidence interval for the proportion of adults in the whole population who use email.

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6 more questions
  • Q2The Poisson Distribution · Linear Combinations of Random Variables5M
  • Q3The Poisson Distribution7M
  • Q4Continuous Random Variables7M
  • Q5Linear Combinations of Random Variables · Hypothesis Tests · Sampling and Estimation8M
  • Q6Hypothesis Tests9M
  • Q7Sampling and Estimation11M
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