Mathematics 9709/63 — May/June 2014
Cambridge A-Level · Probability & Statistics 1 · worked solutions for every part, with the mark scheme
7
questions
50
marks
75
minutes
Topics Discrete Random Variables · Representation of Data · The Normal Distribution · Permutations and Combinations · Probability
Q1Representation of DataFree sample
Some adults and some children each tried to estimate, without using a watch, the number of seconds that had elapsed in a fixed time-interval. Their estimates are shown below.
Adults: 55 58 67 74 63 61 63 71 56 53 54 78 73 64 62
Children: 86 95 89 72 61 84 77 92 81 54 43 68 62 67 83
(i)3M
Draw a back-to-back stem-and-leaf diagram to represent the data.
(ii)2M
Make two comparisons between the estimates of the adults and the children.
The rest of this paper
6 more questions- Q2The Normal Distribution · Discrete Random Variables6M
- Q3Permutations and Combinations · Probability · Discrete Random Variables6M
- Q4Representation of Data6M
- Q5The Normal Distribution · Discrete Random Variables8M
- Q6Probability8M
- Q7Permutations and Combinations11M
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