Mathematics 9709/71 — October/November 2014

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

questions

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

Q15MLinear Combinations of Random VariablesFree sample

The masses, in grams, of potatoes of types $A$ and $B$ have the distributions $N(175, 60^2)$ and $N(105, 28^2)$ respectively. Find the probability that a randomly chosen potato of type $A$ has a mass that is at least twice the mass of a randomly chosen potato of type $B$ .

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5 more questions

Q2The Poisson Distribution · Linear Combinations of Random Variables7M
Q3Continuous Random Variables8M
Q4Sampling and Estimation10M
Q5Sampling and Estimation · Hypothesis Tests10M
Q6The Poisson Distribution · Hypothesis Tests10M

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