Mathematics (AS & A Level) · Feb / March 2016 · Paper 72 · Question 6
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As printed in the paper
The question as text
The battery in Sue’s phone runs out at random moments. Over a long period, she has found that the battery runs out, on average, 3.3 times in a 30-day period.
Read automatically from the paper; the printed page above is exact.
Show the answer and mark scheme
6(i)[3]
6(ii)[5]
6(iii)[3]
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