Detailed Case Study Search the Archive Feedback

1. Arrange students into groups. Each group needs at least ONE person who has a mobile device.

2. If their phone camera doesn't automatically detect and decode QR codes, ask students to

- Download a QR reader (e.g. I-Nigma | NeoReader | Kaywa) onto their mobile devices
- Bring these devices into the lesson.

4. Cut them out and place them around your class / school.

1. Give each group a clipboard and a piece of paper so they can write down the decoded questions and their answers to them.

2. Explain to the students that the codes are hidden around the school. Each team will get ONE point for each question they correctly decode and copy down onto their sheet, and a further TWO points if they can then provide the correct answer and write this down underneath the question.

3. Away they go! The winner is the first team to return with the most correct answers in the time available. This could be within a lesson, or during a lunchbreak, or even over several days!

4. A detailed case study in how to set up a successful QR Scavenger Hunt using this tool can be found here.

## Question | ## Answer |

1. Q1 Level 1: MODE -A statistical term that refers to the most frequently occurring number found in a set of numbers | a |

2. Q1 Level 2: What is the mode of the following data: 3, 4, 2, 2, 2, 3, 4, 5, 2, 5, 5, 5, 6, 2 | 2 |

3. Q1 Level 3: When could it be important to work out the mode of some data? | a |

4. Q2 Level 1: List the sample space for a coin flip | Heads, Tails |

5. Q2 Level 2: What is the probability of heads? | 1/2, 50% |

6. Q2 Level 3: Express the probability of flipping tails as a fraction in smallest possible form | 1/2 |

7. Q3 Level 1: DEFINITION – “Range of results” The range of a set of data is the difference between the highest and lowest values in the set | a |

8. Q3 Level 2: What is the range for the following data: 45,23,12,40,45,45,45,60,5,45,65 | 60 |

9. Q3 Level 3: When could it be important to work out the range of results for some data? | a |

10. Q4 Level 1: DEFINITION – “Median” To find the Median, place the numbers you are given in value order and find the middle number | a |

11. Q4 Level 2: Calculate the median of the following 13, 23, 11, 16, 15, 10, 26 | 15 |

12. Q4 Level 3: FACT If there are two middle numbers you average them both to get the MEDIAN | a |

13. Q5 Level 1: Construct a steam and leaf plot for the following data: 38, 33, 35, 35, 27, 29, 31, 15, 48, 29, 9 | a |

14. Q5 Level 2: What is the range of results? | a |

15. Q5 Level 3: What is the mean of the results? | a |

16. Q6 Level 1: What is the likelihood of the sun rising tomorrow morning? | a |

17. Q6 Level 2: What is the likelihood of the month of November seeing zero rain fall in the west coast of Tasmania? | a |

18. Q6 Level 3: What is the likelihood of getting a $1 coin back from the supermarket after you buy 4 bananas for $3.95 paying with a $5 note | a |

19. Q7 Level 1: DEFINITION “Mean” Mean is what most people commonly refer to as an average. The mean refers to the number you obtain when you sum up a given set of numbers and then divide this sum by the total number in the set. | a |

20. Q7 Level 2: What is the mean of the following data: 55,34,12,12,13,4,6,4 | a |

21. Q7 Level 3: When could it be important to calculate the mean of some data? | a |

22. Q8 Level 1: Calculate the probability of selecting the following cards if a card is drawn at random from a full deck (52 cards). Pr (A king) | a |

23. Q8 Level 2: Calculate the probability of selecting the following cards if a card is drawn at random from a full deck (52 cards). Pr (A queen) | a |

24. Q8 Level 3: Calculate the probability of selecting the following cards if a card is drawn at random from a full deck (52 cards). Pr ( A black card and a jack) | a |

25. Q9 Level 1: If the probability of an event is 1/3 then the probability of the complement is ? | 2/3 |

26. Q9 Level 2: If the probability of an event is 6/20 then what is the probability of the complement is ? | 14/20 |

27. Q9 Level 3: If the probability of an event is 67% then the probability of the complement is ? | 33% |

28. Q10 Level 1: When a die is rolled once, what is the probability of landing on the following? Pr (3) | 1/6 |

29. Q10 Level 2: When a die is rolled once, what is the probability of landing on the following? Pr (<3) | 1/2 |

30. Q10 Level 3: When a die is rolled once, what is the probability of landing on the following? Pr (Even) | 1/2 |

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