Mathematics 9709/71 — October/November 2015
Cambridge A-Level · Probability & Statistics 2 · worked solutions for every part, with the mark scheme
7
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
Failures of two computers occur at random and independently. On average the first computer fails 1.2 times per year and the second computer fails 2.3 times per year. Find the probability that the total number of failures by the two computers in a 6-month period is more than 1 and less than 4.
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6 more questions- Q2Sampling and Estimation6M
- Q3Sampling and Estimation6M
- Q4Continuous Random Variables7M
- Q5The Poisson Distribution7M
- Q6Linear Combinations of Random Variables9M
- Q7Sampling and Estimation · Hypothesis Tests11M
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