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Mathematics, 03.02.2021 23:50 isaiah1027
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There are 42 boys and girls participating in an essay-writing competition. Of the competitors, 21 are in seventh grade, 14 are in eighth grade, and 7 are in ninth grade. What is the probability of an eighth grader winning the competition? Which simulation(s) can be used to represent this situation?
A.
The probability is . Simulate this situation by rolling a 6-sided die, with odd numbers representing seventh graders and even numbers representing eighth graders.
B.
The probability is . Simulate this situation by picking a card from a deck of cards, with hearts representing seventh graders, diamonds representing eighth graders, and spades representing ninth graders.
C.
The probability is . Simulate this situation by spinning a spinner with six equal sections, with one section representing ninth graders, two sections representing eighth graders, and three sections representing seventh graders.
D.
The probability is . Simulate this situation by using a number generator with numbers from 1 to 6, with 1 through 3 representing seventh graders, 4 and 5 representing eighth graders, and 6 representing ninth graders.
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