9709/61

Mathematics 9709/61May/June 2012

Cambridge A-Level · Probability & Statistics 1 · worked solutions for every part, with the mark scheme

7
questions
50
marks
75
minutes

Topics The Normal Distribution · Probability · Discrete Random Variables · Representation of Data · Permutations and Combinations

Q13MThe Normal DistributionFree sample

It is given that XN(28.3,4.5)X \sim N(28.3, 4.5). Find the probability that a randomly chosen value of XX lies between 25 and 30.

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6 more questions
  • Q2Probability5M
  • Q3Discrete Random Variables · Probability7M
  • Q4Discrete Random Variables7M
  • Q5Representation of Data9M
  • Q6The Normal Distribution9M
  • Q7Permutations and Combinations10M
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