9709/63

Mathematics 9709/63May/June 2015

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 · Discrete Random Variables · Probability · Representation of Data · Permutations and Combinations

Q13MThe Normal DistributionFree sample

The weights, in grams, of onions in a supermarket have a normal distribution with mean μ\mu and standard deviation 22. The probability that a randomly chosen onion weighs more than 195 grams is 0.128. Find the value of μ\mu.

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6 more questions
  • Q2Probability5M
  • Q3Discrete Random Variables · The Normal Distribution5M
  • Q4Probability · Discrete Random Variables6M
  • Q5The Normal Distribution · Discrete Random Variables9M
  • Q6Representation of Data11M
  • Q7Permutations and Combinations11M
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