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1.     In a group of 40 people, 10 people are healthy. The 30...

1.     In a group of 40 people, 10 people are healthy. The 30 unhealthy people have either high blood pressure, high cholesterol, or both. Suppose 15 have high blood pressure and 25 have high cholesterol. If a person is randomly selected from this group, what is the probability that they have both high blood pressure and high cholesterol? Drawing a Venn diagram will help!


a.     0.25

b.     0.38

c.     0.63

d.     0.75

e.     1.00

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