For continuous random variables X and Ywith joint probability density function
a. Find P(X > 1 and Y > 1).
b. Find the marginal probability density functions 
and 
c. Are X and Y independent? Explain.
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____ systems provide heating and cooling supply to terminal units by running a heating supply pipe to each terminal.
A. Two-pipe B. Three-pipe C. Four-pipe D. Six-pipe
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It is estimated that ___ percent of the world's food supply is lost to pests, disease, and spoilage
a. 20 c. 60 b. 40 d. 80
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There is a definite link between the town of Hamburg and the food we call hamburger
Indicate whether the statement is true or false
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Hot-dip galvanizing is strickly used as a decorative finish for fasteners and structural components.
Answer the following statement true (T) or false (F)
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