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please help this probability and statistics question with clear steps and also expatiation, thankkk so much 4. If X, Y and Z are uncorrelated random

please help this probability and statistics question with clear steps and also expatiation, thankkk so much

4. If X, Y and Z are uncorrelated random variables with standard deviations 5, 12 and 9, respectively and if U = 2X + 3Y and V = 4Y + 5Z, evaluate the correlation coefficient between U and V. (12 marks)

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