If X and Y are independent random variables with means 
=9.5 and 
=6.8, and standard deviations 
=0.4 and 
=0.1, find the means and standard deviations of the following:
a. 3X
b. Y?X
c. X+4Y
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Indicate whether this statement is true or false.
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Answer the following statement true (T) or false (F)
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What is the difference between custom and mass-produced products?
What will be an ideal response?
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