I stucked with 4 questions I didnt know how to answer, Ill be glad for an answers. Thank you

- The odds of a man being over 2 meters tall are 0.3 The odds of a woman being over 2 meters tall are 0.15 If someone is over 2 meters, what are the odds that that person is a man? (the world has an equal number of men and women)?
- bag with 5 green balls, 5 black balls and 5 red balls. One ball is picked out, and not replaced, and then another ball is picked out. What is the probability of drawing at least 1 black ball?
- bag with 15 balls, 5 of which are black. What is the expected number of trials for getting a black ball, if we draw a single ball with replacement?
- Imagine the distribution of clicks to gmail entering account. Which do you think is highest, the mean or the median? or They are Equal (explain Why)

Thank you !

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