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9709/62

Mathematics 9709/62 — October/November 2015

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

7
questions
50
marks
75
minutes

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

Q13MRepresentation of DataFree sample

For nn values of the variable xx, it is given that ∑(x−100)=216\sum (x - 100) = 216 and ∑x=2416\sum x = 2416. Find the value of nn.

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6 more questions
  • Q2Probability · Permutations and Combinations3M
  • Q3Probability6M
  • Q4Permutations and Combinations7M
  • Q5Representation of Data9M
  • Q6Probability · Discrete Random Variables9M
  • Q7The Normal Distribution · Discrete Random Variables13M
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