With a 0.5 probability of success in each of your 5 business investments, what is the probability that you will make profit in at most 2 of your investments? (Answer in two decimal places)
You are funding your own business despite the fact that it is loosing. With a business success rate of 50%, what is the probability of having exactly 2 business successes before 4 losses? (Round off your answer in two decimal places)
Imagine that you are the one picking for the raffle draw of employees, the bowl contains papers with names of 10 employees from the purchasing department and 20 from the sales department. If you draw 4 prize winners, what is the probability picking all 4 people from the sales department? (Round off your answer in two decimal places)
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