Mathematics 9709/63 — October/November 2015

Cambridge AS Level · Probability & Statistics 1 · worked solutions for every part, with the mark scheme

questions

marks

minutes

Topics Representation of Data · Probability · The Normal Distribution · Permutations and Combinations · Discrete Random Variables

Q13MRepresentation of DataFree sample

The time taken, $t$ hours, to deliver letters on a particular route each day is measured on 250 working days. The mean time taken is 2.8 hours. Given that $\sum (t - 2.5)^2 = 96.1$ , find the standard deviation of the times taken.

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6 more questions

Q2Probability5M
Q3Probability6M
Q4The Normal Distribution7M
Q5Permutations and Combinations8M
Q6Representation of Data9M
Q7Discrete Random Variables · The Normal Distribution12M

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