Mathematics (AS & A Level) · Oct / Nov 2020 · Paper 53 · Question 7
9709
As printed in the paper
The question as text
A particular piece of music was played by 91 pianists and for each pianist, the number of incorrect notes was recorded. The results are summarised in the table. Number of incorrect notes 1 −5 6 −10 11 −20 21 −40 41 −70 Frequency 10 5 26 32 18
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7(a)[5]
7(b)[2]
7(c)[3]
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