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Mathematics, 28.12.2021 22:00 kev71

A group of students has 60 houseflies in a large container and needs to assign 20 to each of three groups labeled A, B, and C for an experiment. They can capture the flies one at a time when the flies enter a side chamber in the container that is baited with food. Which of the following methods will be most likely to result in three comparable groups of 20 houseflies each? a. Label the first 20 flies caught as group A, the second 20 caught as group B, and the third 20 caught as group b. Write the letters A, B, and C on separate slips of paper. Randomly pick one of the slips of paper and assign the first 20 flight caught to that group. Pick another slip and assign the next 20 flies caught to that group. Assign the remaining flies to the remaining group. When each fly is caught, roll a die. If the die shows an even number, the fly is labeled A. If the die shows an odd number, the fly is labeled B. When 20 flies have been labeled A and 20 have been labeled B, the remaining flies are then labeled C. d. Place each fly in its own numbered container (numbered from 1 to 60) in the order that it was caught. Write the numbers from 1 to 60 on slips of paper, put the slips in a jar, and mix them well. Pick ko numbers our of the jar. Assign the flies in the containers with those numbers to group A. Pick 20 more numbers and assign the flies in the containers with those numbers to group B. Assign the remaining 20 flies to group C. When each fly is caught, roll a die. If the die shows a 1 or 2, the fly is labeled A. If the die shows a 3 or 4, the fly is labeled B. If the die shows 5 or 6, the fly is labeled C. Repeat this process for all 60 flies. c.

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