A study presented in the stock market of a certain city estimated that people who invest in shares of energy companies lose their investment with a probability of 0.2; while people who invested in companies in the technology sector had the probability of losing their investment with a probability of 0.17. Finally, it determined that those who invest in agricultural-type companies recover their investment with a probability of 0.8. Knowing this, different people have been randomly selected. For all cases, express the meaning of the random variable, its range and its distribution.
a. What is the probability that in 10 people analyzed, there are 3 who have lost their investment in a technology company?
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