QUESTION 1 50% of people are o en eight 40% of people have back troubles 60% of

Question

QUESTION 1 50% of people are o en eight 40% of people have back troubles 60% of people who are overweight have back troubles what proportion of people are overweight and have back troubles? OA 12 OB, .30 OC.90 O D..10 QUESTION 2 The probability that an individual has a certain gene is 0.90. The probability that an individual does not is 0.10. The probability that a person with that gene develops cancer is.05. The probability that a person who does not have that gene develops cancer is 40. What is the probability that an individual develops cancer? I recommend drawing a tree. A .085 OB.04 C. .045 O D..45

Explanation / Answer

Please post 1 question per post. Here' the answer to the question.

1.

Let there be 100 people in total

50% (50) are overweight
40% (40) people have back problems
60% (30) of people who are overweight have back problems

Proportion of people are overweight and have back problems:
= Have both problems / total people

= 30/100 = 0.30

B is correct

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