Refer to Exercise 19.
a. Find 
.
b. Find 
.
c. Find 
.
d. Find 
.
e. Find Cov(X,Y).
f. Find 
.
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A mechanical advantage greater than 1 (MA > 1) means that a gain in output force has been achieved by an increase in input motion.
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What are some of the reasons that a contractor would be disqualified from a bid for not being a responsible bidder?
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