Mathematics 9709/61 — May/June 2021
Cambridge A-Level · Probability & Statistics 2 · worked solutions for every part, with the mark scheme
8
questions
50
marks
75
minutes
Topics Sampling and Estimation · The Poisson Distribution · Linear Combinations of Random Variables · Continuous Random Variables · Hypothesis Tests
Q14MThe Poisson DistributionLinear Combinations of Random VariablesFree sample
Accidents at two factories occur randomly and independently. On average, the numbers of accidents per month are 3.1 at factory and 1.7 at factory .
Find the probability that the total number of accidents in the two factories during a 2-month period is more than 3.
The rest of this paper
7 more questions- Q2Sampling and Estimation4M
- Q3Continuous Random Variables2M
- Q4Sampling and Estimation6M
- Q5The Poisson Distribution7M
- Q6Continuous Random Variables6M
- Q7Linear Combinations of Random Variables10M
- Q8Sampling and Estimation · Hypothesis Tests11M
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