A. what is the probability that a randomly selected individual is a male and a graduate? what kind of probability is it (marginal/ joint/conditional) b. what is the probability that a randomly selected individual is a male? c. what is the probability of a randomly selected individual being a graduate? what kind of probability is this? d. what is the probability that a randomly selected person is a female given that the selected person is a post-graduate? what kind of probability is this?

1. d.90

2. e. none of these (80)

3. a. 0

4. b. 6

5. e. none of these (10)

6. a. 5

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step-by-step explanation:

geometry: triangles

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call the larger triangle abc

then the smaller triangle cde is similar to abc (all angles are equal, aaa).  

ab is the side that is 36, and we wish to find de, the side corresponding to ab

area_cde = area_abc - area_cde --> area_abc / area_cde = 2

let x=length of de

ratio of areas = (ratio of sides)^2

+2+=+%2836%2fx%29%5e2+

+2+=+1296%2fx%5e2+

++x%5e2+=+1296%2f2+=+648+

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