Mathematics
Mathematics, 03.11.2020 17:00, Jasten

Applicants for jobs at a call centre take two tests, one for communication skills and the other on IT skills, and normalized scores are recorded on each between 0 and 2. For a given applicant, let X be the score on the communications test and Y the score on the IT test. A model for the joint probability density function for the two test scores can be taken as

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