Question: 1. Question 7. A coincidence problem (4.3) Two people, perfect strangers to one another, both living in the same city of one million inhabitants, meet

1. Question 7. A coincidence problem (§4.3)

Two people, perfect strangers to one another, both living in the same city of one million inhabitants, meet each other. Each has approximately 500 acquain tances in the city. Assuming that for each of the two people, the acquaintances represent a random sampling of the city’s various population sectors, what is the probability of the two people having an acquaintance in common?

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