Mathematics (AS & A Level) · May / June 2020 · Paper 52 · Question 3
9709
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Two machines, A and B, produce metal rods of a certain type. The lengths, in metres, of 19 rods produced by machine A and 19 rods produced by machine B are shown in the following back-to-back stem-and-leaf diagram. A B 21 1 2 4 7 6 3 0 22 2 4 5 5 6 8 7 4 3 1 1 23 0 2 6 8 9 9 5 5 5 3 2 24 3 3 4 6 4 3 1 0 25 6 Key: 7 22 4 means 0.227 m for machine A and 0.224 m for machine B.
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3(a)[3]
3(b)[3]
3(c)[2]
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