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Q19: Question – Paper 1 – June 2018
Q19: Question – Paper 1 – June 2018
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19)
Type A batteries and type B batteries were tested.
The cumulative frequency diagram shows information about the battery life of type A
19)
Type A batteries and type B batteries were tested.
The cumulative frequency diagram shows information about the battery life of type A
19 a) Estimate the interquartile range for type A.
[2 marks]
19 b) Estimate the number of type A batteries that had a battery life of more than 1600 hours.
[1 mark]
19 c) The box plot shows information about the battery life of type B.
On average, which type had the greater battery life?
Tick a box.
Tick a box.
Using data from both diagrams, state how you chose your answer.
[2 marks]