what is the probability that a couple, chosen at random, together, earn between 2,000,000 and 3,500,000 (included)?
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In a certain company, the salary of men can take the values of 1,000,000, 1,500,000, 2,000,000 and 2,500,000. Women can enjoy the following salaries: 500,000, 1,000,000, 1,500,000 and 2,000,000.
Assuming that the percentage of men earning each of the values is the same, and the same relative to women, and that men's wages are independent of women's wages, what is the probability that a couple, chosen at random, together, earn between 2,000,000 and 3,500,000 (included)?
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