jade6811 jade6811
  • 12-01-2024
  • Mathematics
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Let X¹, X² be the number of gallons of type A and type B industrial products purchased by a company, respectively. The variances of X¹ and X² are 1 and 2, respectively and the covariance of X¹ and X² is -1. What is Var(3X¹ - 2X²)?

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