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QR Challenge: Probability Math 8

Created using the ClassTools QR Treasure Hunt Generator

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Teacher Notes

A. Prior to the lesson:

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

3. Print out the QR codes.

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

B. The lesson:

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!

C. TIPS / OTHER IDEAS

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

Questions / Answers (teacher reference)

Question

Answer

1. #1 Sam will roll a 6 sided dice twice. What is the probability that he will roll a 2 and then a 4?1/36
2. #2 A bag contains 5 red, 3 green, 4 blue, and 8 yellow marbles. What is the probability of randomly selecting a green marble, replacing it, and then a yellow marble?3/50
3. #3 A sock drawer contains 5 white socks, 5 green, and 5 blue. What is the probability of randomly selecting a pair of blue socks, replacing it, and randomly selecting a pair of white socks?1/9
4. #4 In a standard deck of cards, what is the probability of picking a diamond and then another diamond without replacement?1/17
5. #5 Randy has 4 pennies, 2 nickels, and 3 dimes in his pocket. What is the probability of him choosing a dime, not replacing it, and choosing another dime?1/12
6. #6 A dice is rolled and a coin is flipped. What is the probability of rolling an even number and flipping tails?1/4
7. #7 What is the probability of flipping a coin three times and getting heads each time?⅛
8. #8 Using the letters in the state VIRGINIA. Find the probability of picking a G and then an I without replacement?3/56
9. #9 Using the letters in the state VIRGINIA. Find the probability of picking a V and then a N without replacement?1/56
10. #10 A bag contains 2 black marbles and 3 red marbles. You reach into the bag, select a marble, do not replace it. What is the probability of selecting a red marble and then another red marble?3/10
11. #11 A bag contains 2 black marbles and 3 red marbles. What is the probability you reach into the bag and select a red marble, put it back in the bag, and select a another red marble?9/25
12. #12 What is the probability that a coin will land on heads and then a coin will land on tails?1/4
13. #13 You have a bag of 17 marbles. Four are blue, 6 are green, 2 are red, and the others are yellow. What is the probability of drawing a green marble, putting it aside, and then drawing another green marble?15/136
14. #14 You have a bag of 17 marbles. Four are blue, 6 are green, 2 are red, and the others are yellow. What is the probability of drawing a red marble, putting it aside, and then drawing a green marble?3/68
15. #15 You have tiles numbered 1 – 9 in a bag. What is the probability of drawing the number 2, putting it aside, and then drawing the number 5?1/72
16. #16 What is the probability of rolling a 3 on a 6-sided number cube and then NOT rolling a 3 on a 6-sided number cube?5/36

 


Probability Math 8: QR Challenge

https://www.classtools.net/QR/decode.php?text=#1-Sam-will-roll-a-6-sided-dice-twice.-What-is-the-probability-that-he-will-roll-a-2-and-then-a-4?

Question 1 (of 16)

 


Probability Math 8: QR Challenge

https://www.classtools.net/QR/decode.php?text=#2-A-bag-contains-5-red,-3-green,-4-blue,-and-8-yellow-marbles.-What-is-the-probability-of-randomly-selecting-a-green-marble,-replacing-it,-and-then-a-yellow-marble?

Question 2 (of 16)

 


Probability Math 8: QR Challenge

https://www.classtools.net/QR/decode.php?text=#3-A-sock-drawer-contains-5-white-socks,-5-green,-and-5-blue.-What-is-the-probability-of-randomly-selecting-a-pair-of-blue-socks,-replacing-it,-and-randomly-selecting-a-pair-of-white-socks?

Question 3 (of 16)

 


Probability Math 8: QR Challenge

https://www.classtools.net/QR/decode.php?text=#4-In-a-standard-deck-of-cards,-what-is-the-probability-of-picking-a-diamond-and-then-another-diamond-without-replacement?

Question 4 (of 16)

 


Probability Math 8: QR Challenge

https://www.classtools.net/QR/decode.php?text=#5-Randy-has-4-pennies,-2-nickels,-and-3-dimes-in-his-pocket.-What-is-the-probability-of-him-choosing-a-dime,-not-replacing-it,-and-choosing-another-dime?

Question 5 (of 16)

 


Probability Math 8: QR Challenge

https://www.classtools.net/QR/decode.php?text=#6-A-dice-is-rolled-and-a-coin-is-flipped.-What-is-the-probability-of-rolling-an-even-number-and-flipping-tails?

Question 6 (of 16)

 


Probability Math 8: QR Challenge

https://www.classtools.net/QR/decode.php?text=#7-What-is-the-probability-of-flipping-a-coin-three-times-and-getting-heads-each-time?

Question 7 (of 16)

 


Probability Math 8: QR Challenge

https://www.classtools.net/QR/decode.php?text=#8-Using-the-letters-in-the-state-VIRGINIA.-Find-the-probability-of-picking-a-G-and-then-an-I-without-replacement?

Question 8 (of 16)

 


Probability Math 8: QR Challenge

https://www.classtools.net/QR/decode.php?text=#9-Using-the-letters-in-the-state-VIRGINIA.-Find-the-probability-of-picking-a-V-and-then-a-N-without-replacement?

Question 9 (of 16)

 


Probability Math 8: QR Challenge

https://www.classtools.net/QR/decode.php?text=#10-A-bag-contains-2-black-marbles-and-3-red-marbles.-You-reach-into-the-bag,-select-a-marble,-do-not-replace-it.-What-is-the-probability-of-selecting-a-red-marble-and-then-another-red-marble?

Question 10 (of 16)

 


Probability Math 8: QR Challenge

https://www.classtools.net/QR/decode.php?text=#11-A-bag-contains-2-black-marbles-and-3-red-marbles.-What-is-the-probability-you-reach-into-the-bag-and-select-a-red-marble,-put-it-back-in-the-bag,-and-select-a-another-red-marble?

Question 11 (of 16)

 


Probability Math 8: QR Challenge

https://www.classtools.net/QR/decode.php?text=#12-What-is-the-probability-that-a-coin-will-land-on-heads-and-then-a-coin-will-land-on-tails?

Question 12 (of 16)

 


Probability Math 8: QR Challenge

https://www.classtools.net/QR/decode.php?text=#13-You-have-a-bag-of-17-marbles.--Four-are-blue,-6-are-green,-2-are-red,-and-the-others-are-yellow.--What-is-the-probability-of-drawing-a-green-marble,-putting-it-aside,-and-then-drawing-another-green-marble?

Question 13 (of 16)

 


Probability Math 8: QR Challenge

https://www.classtools.net/QR/decode.php?text=#14-You-have-a-bag-of-17-marbles.--Four-are-blue,-6-are-green,-2-are-red,-and-the-others-are-yellow.--What-is-the-probability-of-drawing-a-red-marble,-putting-it-aside,-and-then-drawing-a-green-marble?

Question 14 (of 16)

 


Probability Math 8: QR Challenge

https://www.classtools.net/QR/decode.php?text=#15-You-have-tiles-numbered-1-–-9-in-a-bag.--What-is-the-probability-of-drawing-the-number-2,-putting-it-aside,-and-then-drawing-the-number-5?

Question 15 (of 16)

 


Probability Math 8: QR Challenge

https://www.classtools.net/QR/decode.php?text=#16-What-is-the-probability-of-rolling-a-3-on-a-6-sided-number-cube-and-then-NOT-rolling-a-3-on-a-6-sided-number-cube?

Question 16 (of 16)