Mathematics 9709/51 — October/November 2023
Cambridge A-Level · Probability & Statistics 1 · worked solutions for every part, with the mark scheme
6
questions
50
marks
75
minutes
Topics Representation of Data · Discrete Random Variables · The Normal Distribution · Probability · Permutations and Combinations
Q1Representation of DataFree sample
The times taken by 120 children to complete a particular puzzle are represented in the cumulative frequency graph.
(a)2M
Use the graph to estimate the interquartile range of the data.
(b)2M
35% of the children took longer than seconds to complete the puzzle.
Use the graph to estimate the value of .
The rest of this paper
5 more questions- Q2Discrete Random Variables7M
- Q3The Normal Distribution11M
- Q4Representation of Data9M
- Q5Discrete Random Variables · Probability9M
- Q6Permutations and Combinations10M
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