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OpenStudy (hockeychick23):
A scientist is working on a new test for cotton allergies. She knows that 2.5% of all the students at Annie's school are allergic to cotton. For those who are allergic, 80% test positive and 20% test negative. For those who are not allergic, the test shows 10% positive and 90% negative.Draw a tree diagram to show all the given facts about the cotton allergy test.
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