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Stem and leaf diagrams

Learn how to create a stem and leaf diagram for completion times and find the median and range of a given dataset.

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Stem and leaf diagrams

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  1. Stem and leaf diagrams

  2. Completion times 3 4 5 6 7 Example - drawing a stem and leaf Question:- 29 students were set a simple task. Their completion times to the nearest second were: 47 61 53 43 46 46 68 48 72 57 48 54 41 63 49 42 58 65 45 44 43 51 45 38 46 44 52 43 47 (a) set these data into a stem and leaf diagram (b) find the median and range Answer (a):- (1) key: 4|7 means 47 (2) put values into preliminary diagram: stem leaf

  3. Example - drawing a stem and leaf Question:- 29 students were set a simple task. Their completion times to the nearest second were: 47 61 53 43 46 46 68 48 72 57 48 54 41 63 49 42 58 65 45 44 43 51 45 38 46 44 52 43 47 (a) set these data into a stem and leaf diagram (b) find the median and range Answer (a):- (1) key: 4|7 means 47 (2) put values into preliminary diagram: Completion times 3 4 5 6 7 7

  4. Example - drawing a stem and leaf Question:- 29 students were set a simple task. Their completion times to the nearest second were: 47 61 53 43 46 46 68 48 72 57 48 54 41 63 49 42 58 65 45 44 43 51 45 38 46 44 52 43 47 (a) set these data into a stem and leaf diagram (b) find the median and range Answer (a):- (1) key: 4|7 means 47 (2) put values into preliminary diagram: Completion times 3 4 5 6 7 7 1

  5. Example - drawing a stem and leaf Question:- 29 students were set a simple task. Their completion times to the nearest second were: 47 61 53 43 46 46 68 48 72 57 48 54 41 63 49 42 58 65 45 44 43 51 45 38 46 44 52 43 47 (a) set these data into a stem and leaf diagram (b) find the median and range Answer (a):- (1) key: 4|7 means 47 (2) put values into preliminary diagram: Completion times 3 4 5 6 7 7 3 1

  6. Example - drawing a stem and leaf Question:- 29 students were set a simple task. Their completion times to the nearest second were: 47 61 53 43 46 46 68 48 72 57 48 54 41 63 49 42 58 65 45 44 43 51 45 38 46 44 52 43 47 (a) set these data into a stem and leaf diagram (b) find the median and range Answer (a):- (1) key: 4|7 means 47 (2) put values into preliminary diagram: Completion times 3 4 5 6 7 7 3 3 1

  7. Example - drawing a stem and leaf Question:- 29 students were set a simple task. Their completion times to the nearest second were: 47 61 53 43 46 46 68 48 72 57 48 54 41 63 49 42 58 65 45 44 43 51 45 38 46 44 52 43 47 (a) set these data into a stem and leaf diagram (b) find the median, and range Answer (a):- (1) key: 4|7 means 47 (2) put values into preliminary diagram: Completion times 3 4 5 6 7 7 3 6 3 1

  8. Example - drawing a stem and leaf Question:- 29 students were set a simple task. Their completion times to the nearest second were: 47 61 53 43 46 46 68 48 72 57 48 54 41 63 49 42 58 65 45 44 43 51 45 38 46 44 52 43 47 (a) set these data into a stem and leaf diagram (b) find the median and range Answer (a):- (1) key: 4|7 means 47 (2) put values into preliminary diagram: Completion times 3 4 5 6 7 7 3 6 6 3 1

  9. Example - drawing a stem and leaf Question:- 29 students were set a simple task. Their completion times to the nearest second were: 47 61 53 43 46 46 68 48 72 57 48 54 41 63 49 42 58 65 45 44 43 51 45 38 46 44 52 43 47 (a) set these data into a stem and leaf diagram (b) find the median and range Answer (a):- (1) key: 4|7 means 47 (2) put values into preliminary diagram: Completion times 3 4 5 6 7 7 3 6 6 3 1 8

  10. Example - drawing a stem and leaf Question:- 29 students were set a simple task. Their completion times to the nearest second were: 47 61 53 43 46 46 68 48 72 57 48 54 41 63 49 42 58 65 45 44 43 51 45 38 46 44 52 43 47 (a) set these data into a stem and leaf diagram (b) find the median and range Answer (a):- (1) key: 4|7 means 47 (2) put values into preliminary diagram: Completion times 3 4 5 6 7 7 3 6 6 8 3 1 8

  11. Example - drawing a stem and leaf Question:- 29 students were set a simple task. Their completion times to the nearest second were: 47 61 53 43 46 46 68 48 72 57 48 54 41 63 49 42 58 65 45 44 43 51 45 38 46 44 52 43 47 (a) set these data into a stem and leaf diagram (b) find the median and range Answer (a):- (1) key: 4|7 means 47 (2) put values into preliminary diagram: Completion times 3 4 5 6 7 7 3 6 6 8 3 1 8 2

  12. Example - drawing a stem and leaf Question:- 29 students were set a simple task. Their completion times to the nearest second were: 47 61 53 43 46 46 68 48 72 57 48 54 41 63 49 42 58 65 45 44 43 51 45 38 46 44 52 43 47 (a) set these data into a stem and leaf diagram (b) find the median and range Answer (a):- (1) key: 4|7 means 47 (2) put values into preliminary diagram: Completion times 3 4 5 6 7 7 3 6 6 8 3 7 1 8 2

  13. Example - drawing a stem and leaf Question:- 29 students were set a simple task. Their completion times to the nearest second were: 47 61 53 43 46 46 68 48 72 57 48 54 41 63 49 42 58 65 45 44 43 51 45 38 46 44 52 43 47 (a) set these data into a stem and leaf diagram (b) find the median and range Answer (a):- (1) key: 4|7 means 47 (2) put values into preliminary diagram: Completion times 3 4 5 6 7 7 3 6 6 8 8 3 7 1 8 2

  14. Example - drawing a stem and leaf Question:- 29 students were set a simple task. Their completion times to the nearest second were: 47 61 53 43 46 46 68 48 72 57 48 54 41 63 49 42 58 65 45 44 43 51 45 38 46 44 52 43 47 (a) set these data into a stem and leaf diagram (b) find the median and range Answer (a):- (1) key: 4|7 means 47 (2) put values into preliminary diagram: Completion times 3 4 5 6 7 7 3 6 6 8 8 3 7 4 1 8 2

  15. Example - drawing a stem and leaf Question:- 29 students were set a simple task. Their completion times to the nearest second were: 47 61 53 43 46 46 68 48 72 57 48 54 41 63 49 42 58 65 45 44 43 51 45 38 46 44 52 43 47 (a) set these data into a stem and leaf diagram (b) find the median and range Answer (a):- (1) key: 4|7 means 47 (2) put values into preliminary diagram: Completion times 3 4 5 6 7 7 3 6 6 8 8 1 3 7 4 1 8 2

  16. Example - drawing a stem and leaf Question:- 29 students were set a simple task. Their completion times to the nearest second were: 47 61 53 43 46 46 68 48 72 57 48 54 41 63 49 42 58 65 45 44 43 51 45 38 46 44 52 43 47 (a) set these data into a stem and leaf diagram (b) find the median and range Answer (a):- (1) key: 4|7 means 47 (2) put values into preliminary diagram: Completion times 3 4 5 6 7 7 3 6 6 8 8 1 3 7 4 1 8 3 2

  17. Example - drawing a stem and leaf Question:- 29 students were set a simple task. Their completion times to the nearest second were: 47 61 53 43 46 46 68 48 72 57 48 54 41 63 49 42 58 65 45 44 43 51 45 38 46 44 52 43 47 (a) set these data into a stem and leaf diagram (b) find the median and range Answer (a):- (1) key: 4|7 means 47 (2) put values into preliminary diagram: Completion times 3 4 5 6 7 7 3 6 6 8 8 1 9 3 7 4 1 8 3 2

  18. Example - drawing a stem and leaf Question:- 29 students were set a simple task. Their completion times to the nearest second were: 47 61 53 43 46 46 68 48 72 57 48 54 41 63 49 42 58 65 45 44 43 51 45 38 46 44 52 43 47 (a) set these data into a stem and leaf diagram (b) find the median and range Answer (a):- (1) key: 4|7 means 47 (2) put values into preliminary diagram: Completion times 3 4 5 6 7 7 3 6 6 8 8 1 9 2 3 7 4 1 8 3 2

  19. Example - drawing a stem and leaf Question:- 29 students were set a simple task. Their completion times to the nearest second were: 47 61 53 43 46 46 68 48 72 57 48 54 41 63 49 42 58 65 45 44 43 51 45 38 46 44 52 43 47 (a) set these data into a stem and leaf diagram (b) find the median and range Answer (a):- (1) key: 4|7 means 47 (2) put values into preliminary diagram: Completion times 3 4 5 6 7 7 3 6 6 8 8 1 9 2 3 7 4 8 1 8 3 2

  20. Example - drawing a stem and leaf Question:- 29 students were set a simple task. Their completion times to the nearest second were: 47 61 53 43 46 46 68 48 72 57 48 54 41 63 49 42 58 65 45 44 43 51 45 38 46 44 52 43 47 (a) set these data into a stem and leaf diagram (b) find the median and range Answer (a):- (1) key: 4|7 means 47 (2) put values into preliminary diagram: Completion times 3 4 5 6 7 7 3 6 6 8 8 1 9 2 3 7 4 8 1 8 3 5 2

  21. Example - drawing a stem and leaf Question:- 29 students were set a simple task. Their completion times to the nearest second were: 47 61 53 43 46 46 68 48 72 57 48 54 41 63 49 42 58 65 45 44 43 51 45 38 46 44 52 43 47 (a) set these data into a stem and leaf diagram (b) find the median and range Answer (a):- (1) key: 4|7 means 47 (2) put values into preliminary diagram: Completion times 3 4 5 6 7 7 3 6 6 8 8 1 9 2 5 3 7 4 8 1 8 3 5 2

  22. Example - drawing a stem and leaf Question:- 29 students were set a simple task. Their completion times to the nearest second were: 47 61 53 43 46 46 68 48 72 57 48 54 41 63 49 42 58 65 45 44 43 51 45 38 46 44 52 43 47 (a) set these data into a stem and leaf diagram (b) find the median and range Answer (a):- (1) key: 4|7 means 47 (2) put values into preliminary diagram: Completion times 3 4 5 6 7 7 3 6 6 8 8 1 9 2 5 4 3 7 4 8 1 8 3 5 2

  23. Example - drawing a stem and leaf Question:- 29 students were set a simple task. Their completion times to the nearest second were: 47 61 53 43 46 46 68 48 72 57 48 54 41 63 49 42 58 65 45 44 43 51 45 38 46 44 52 43 47 (a) set these data into a stem and leaf diagram (b) find the median and range Answer (a):- (1) key: 4|7 means 47 (2) put values into preliminary diagram: Completion times 3 4 5 6 7 7 3 6 6 8 8 1 9 2 5 4 3 3 7 4 8 1 8 3 5 2

  24. Example - drawing a stem and leaf Question:- 29 students were set a simple task. Their completion times to the nearest second were: 47 61 53 43 46 46 68 48 72 57 48 54 41 63 49 42 58 65 45 44 43 51 45 38 46 44 52 43 47 (a) set these data into a stem and leaf diagram (b) find the median and range Answer (a):- (1) key: 4|7 means 47 (2) put values into preliminary diagram: Completion times 3 4 5 6 7 7 3 6 6 8 8 1 9 2 5 4 3 3 7 4 8 1 1 8 3 5 2

  25. Example - drawing a stem and leaf Question:- 29 students were set a simple task. Their completion times to the nearest second were: 47 61 53 43 46 46 68 48 72 57 48 54 41 63 49 42 58 65 45 44 43 51 45 38 46 44 52 43 47 (a) set these data into a stem and leaf diagram (b) find the median and range Answer (a):- (1) key: 4|7 means 47 (2) put values into preliminary diagram: Completion times 3 4 5 6 7 7 3 6 6 8 8 1 9 2 5 4 3 5 3 7 4 8 1 1 8 3 5 2

  26. Example - drawing a stem and leaf Question:- 29 students were set a simple task. Their completion times to the nearest second were: 47 61 53 43 46 46 68 48 72 57 48 54 41 63 49 42 58 65 45 44 43 51 45 38 46 44 52 43 47 (a) set these data into a stem and leaf diagram (b) find the median and range Answer (a):- (1) key: 4|7 means 47 (2) put values into preliminary diagram: Completion times 3 4 5 6 7 8 7 3 6 6 8 8 1 9 2 5 4 3 5 3 7 4 8 1 1 8 3 5 2

  27. Example - drawing a stem and leaf Question:- 29 students were set a simple task. Their completion times to the nearest second were: 47 61 53 43 46 46 68 48 72 57 48 54 41 63 49 42 58 65 45 44 43 51 45 38 46 44 52 43 47 (a) set these data into a stem and leaf diagram (b) find the median and range Answer (a):- (1) key: 4|7 means 47 (2) put values into preliminary diagram: Completion times 3 4 5 6 7 8 7 3 6 6 8 8 1 9 2 5 4 3 5 6 3 7 4 8 1 1 8 3 5 2

  28. Example - drawing a stem and leaf Question:- 29 students were set a simple task. Their completion times to the nearest second were: 47 61 53 43 46 46 68 48 72 57 48 54 41 63 49 42 58 65 45 44 43 51 45 38 46 44 52 43 47 (a) set these data into a stem and leaf diagram (b) find the median and range Answer (a):- (1) key: 4|7 means 47 (2) put values into preliminary diagram: Completion times 3 4 5 6 7 8 7 3 6 6 8 8 1 9 2 5 4 3 5 6 4 3 7 4 8 1 1 8 3 5 2

  29. Example - drawing a stem and leaf Question:- 29 students were set a simple task. Their completion times to the nearest second were: 47 61 53 43 46 46 68 48 72 57 48 54 41 63 49 42 58 65 45 44 43 51 45 38 46 44 52 43 47 (a) set these data into a stem and leaf diagram (b) find the median and range Answer (a):- (1) key: 4|7 means 47 (2) put values into preliminary diagram: Completion times 3 4 5 6 7 8 7 3 6 6 8 8 1 9 2 5 4 3 5 6 4 3 7 4 8 1 2 1 8 3 5 2

  30. Example - drawing a stem and leaf Question:- 29 students were set a simple task. Their completion times to the nearest second were: 47 61 53 43 46 46 68 48 72 57 48 54 41 63 49 42 58 65 45 44 43 51 45 38 46 44 52 43 47 (a) set these data into a stem and leaf diagram (b) find the median and range Answer (a):- (1) key: 4|7 means 47 (2) put values into preliminary diagram: Completion times 3 4 5 6 7 8 7 3 6 6 8 8 1 9 2 5 4 3 5 6 4 3 3 7 4 8 1 2 1 8 3 5 2

  31. Example - drawing a stem and leaf Question:- 29 students were set a simple task. Their completion times to the nearest second were: 47 61 53 43 46 46 68 48 72 57 48 54 41 63 49 42 58 65 45 44 43 51 45 38 46 44 52 43 47 (a) set these data into a stem and leaf diagram (b) find the median and range Answer (a):- (1) key: 4|7 means 47 (2) put values into preliminary diagram: Completion times 3 4 5 6 7 8 7 3 6 6 8 8 1 9 2 5 4 3 5 6 4 3 7 3 7 4 8 1 2 1 8 3 5 2

  32. Example - drawing a stem and leaf Question:- 29 students were set a simple task. Their completion times to the nearest second were: 47 61 53 43 46 46 68 48 72 57 48 54 41 63 49 42 58 65 45 44 43 51 45 38 46 44 52 43 47 (a) set these data into a stem and leaf diagram (b) find the median and range Answer (a):- (1) key: 4|7 means 47 (2) put values into preliminary diagram: Completion times 3 4 5 6 7 8 7 3 6 6 8 8 1 9 2 5 4 3 5 6 4 3 7 3 7 4 8 1 2 1 8 3 5 2 (3) re draw diagram with leafs in numerical order:

  33. Example - drawing a stem and leaf Answer (a):- (3) re draw diagram with leafs in numerical order: Completion times 3 4 5 6 7 8 7 3 6 6 8 8 1 9 2 5 4 3 5 6 4 3 7 3 7 4 8 1 2 1 8 3 5 2 Completion times 3 4 5 6 7

  34. Example - drawing a stem and leaf Answer (a):- (3) re draw diagram with leafs in numerical order: Completion times 3 4 5 6 7 8 7 3 6 6 8 8 1 9 2 5 4 3 5 6 4 3 7 3 7 4 8 1 2 1 8 3 5 2 Completion times 3 4 5 6 7 8

  35. Example - drawing a stem and leaf Answer (a):- (3) re draw diagram with leafs in numerical order: Completion times 3 4 5 6 7 8 7 3 6 6 8 8 1 9 2 5 4 3 5 6 4 3 7 3 7 4 8 1 2 1 8 3 5 2 Completion times 3 4 5 6 7 8 1

  36. Example - drawing a stem and leaf Answer (a):- (3) re draw diagram with leafs in numerical order: Completion times 3 4 5 6 7 8 7 3 6 6 8 8 1 9 2 5 4 3 5 6 4 3 7 3 7 4 8 1 2 1 8 3 5 2 Completion times 3 4 5 6 7 8 1 2

  37. Example - drawing a stem and leaf Answer (a):- (3) re draw diagram with leafs in numerical order: Completion times 3 4 5 6 7 8 7 3 6 6 8 8 1 9 2 5 4 3 5 6 4 3 7 3 7 4 8 1 2 1 8 3 5 2 Completion times 3 4 5 6 7 8 1 2 3

  38. Example - drawing a stem and leaf Answer (a):- (3) re draw diagram with leafs in numerical order: Completion times 3 4 5 6 7 8 7 3 6 6 8 8 1 9 2 5 4 3 5 6 4 3 7 3 7 4 8 1 2 1 8 3 5 2 Completion times 3 4 5 6 7 8 1 2 3 3

  39. Example - drawing a stem and leaf Answer (a):- (3) re draw diagram with leafs in numerical order: Completion times 3 4 5 6 7 8 7 3 6 6 8 8 1 9 2 5 4 3 5 6 4 3 7 3 7 4 8 1 2 1 8 3 5 2 Completion times 3 4 5 6 7 8 1 2 3 3 3

  40. Example - drawing a stem and leaf Answer (a):- (3) re draw diagram with leafs in numerical order: Completion times 3 4 5 6 7 8 7 3 6 6 8 8 1 9 2 5 43 5 6 4 3 7 3 7 4 8 1 2 1 8 3 5 2 Completion times 3 4 5 6 7 8 1 2 3 3 3 4

  41. Example - drawing a stem and leaf Answer (a):- (3) re draw diagram with leafs in numerical order: Completion times 3 4 5 6 7 8 7 3 6 6 8 8 1 9 2 5 43 5 6 43 7 3 7 4 8 1 2 1 8 3 5 2 Completion times 3 4 5 6 7 8 1 2 3 3 3 4 4

  42. Example - drawing a stem and leaf Answer (a):- (3) re draw diagram with leafs in numerical order: Completion times 3 4 5 6 7 8 7 3 6 6 8 8 1 9 2543 5 6 43 7 3 7 4 8 1 2 1 8 3 5 2 Completion times 3 4 5 6 7 8 1 2 3 3 3 4 4 5

  43. Example - drawing a stem and leaf Answer (a):- (3) re draw diagram with leafs in numerical order: Completion times 3 4 5 6 7 8 7 3 6 6 8 8 1 9 25435 6 43 7 3 7 4 8 1 2 1 8 3 5 2 Completion times 3 4 5 6 7 8 1 2 3 3 3 4 4 5 5

  44. Example - drawing a stem and leaf Answer (a):- (3) re draw diagram with leafs in numerical order: Completion times 3 4 5 6 7 8 7 36 6 8 8 1 9 25435 6 43 7 3 7 4 8 1 2 1 8 3 5 2 Completion times 3 4 5 6 7 8 1 2 3 3 3 4 4 5 5 6

  45. Example - drawing a stem and leaf Answer (a):- (3) re draw diagram with leafs in numerical order: Completion times 3 4 5 6 7 8 7 366 8 8 1 9 25435 6 43 7 3 7 4 8 1 2 1 8 3 5 2 Completion times 3 4 5 6 7 8 1 2 3 3 3 4 4 5 5 6 6

  46. Example - drawing a stem and leaf Answer (a):- (3) re draw diagram with leafs in numerical order: Completion times 3 4 5 6 7 8 7 366 8 8 1 9 25435643 7 3 7 4 8 1 2 1 8 3 5 2 Completion times 3 4 5 6 7 8 1 2 3 3 3 4 4 5 5 6 6 6

  47. Example - drawing a stem and leaf Answer (a):- (3) re draw diagram with leafs in numerical order: Completion times 3 4 5 6 7 8 7366 8 8 1 9 25435643 7 3 7 4 8 1 2 1 8 3 5 2 Completion times 3 4 5 6 7 8 1 2 3 3 3 4 4 5 5 6 6 6 7

  48. Example - drawing a stem and leaf Answer (a):- (3) re draw diagram with leafs in numerical order: Completion times 3 4 5 6 7 8 7366 8 8 1 9 254356437 3 7 4 8 1 2 1 8 3 5 2 Completion times 3 4 5 6 7 8 1 2 3 3 3 4 4 5 5 6 6 6 7 7

  49. Example - drawing a stem and leaf Answer (a):- (3) re draw diagram with leafs in numerical order: Completion times 3 4 5 6 7 8 73668 8 1 9 254356437 3 7 4 8 1 2 1 8 3 5 2 Completion times 3 4 5 6 7 8 1 2 3 3 3 4 4 5 5 6 6 6 7 7 8

  50. Example - drawing a stem and leaf Answer (a):- (3) re draw diagram with leafs in numerical order: Completion times 3 4 5 6 7 8 7366881 9 254356437 3 7 4 8 1 2 1 8 3 5 2 Completion times 3 4 5 6 7 8 1 2 3 3 3 4 4 5 5 6 6 6 7 7 8 8

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