Mathematics 9709/72 — May/June 2018

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

questions

marks

minutes

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

Q13MThe Poisson DistributionLinear Combinations of Random VariablesFree sample

The numbers of alpha, beta and gamma particles emitted per minute by a certain piece of rock have independent distributions $Po(0.2)$ , $Po(0.3)$ and $Po(0.6)$ respectively. Find the probability that the total number of particles emitted during a 4-minute period is less than 4.

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6 more questions

Q2Linear Combinations of Random Variables3M
Q3Sampling and Estimation4M
Q4Sampling and Estimation · Hypothesis Tests9M
Q5Continuous Random Variables9M
Q6The Poisson Distribution10M
Q7Hypothesis Tests12M

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