Mathematics 9709/73 — May/June 2011
Cambridge A-Level · Probability & Statistics 2 · worked solutions for every part, with the mark scheme
7
questions
50
marks
75
minutes
Topics Linear Combinations of Random Variables · The Poisson Distribution · Sampling and Estimation · Hypothesis Tests · Continuous Random Variables
Q14MLinear Combinations of Random VariablesThe Poisson DistributionFree sample
A hotel kitchen has two dish-washing machines. The numbers of breakdowns per year by the two machines have independent Poisson distributions with means 0.7 and 1.0. Find the probability that the total number of breakdowns by the two machines during the next two years will be less than 3.
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6 more questions- Q2Sampling and Estimation5M
- Q3Hypothesis Tests6M
- Q4The Poisson Distribution7M
- Q5Linear Combinations of Random Variables9M
- Q6Continuous Random Variables9M
- Q7Sampling and Estimation · Hypothesis Tests10M
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