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Week 8: Working with data and uncertainty

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An ordered stem and leaf diagram for the teachers’ times, with “stem” values 0 to 5 as in figure 4. Leaf values: 8 next to stem 1, 7 and 8 next to stem 2, 1, 3, 3 and 6 next to step 3 7 next to stem 4 1 next to step 5 There are no leaves next to stem 0. There is also a key showing that 1 line 8 means 18.

 1.9 Stem and leaf diagrams