A diff-amp with 1 input grounded and the signal voltage applied only to the other input is called:
A) single output. B) single ended. C) grounded input. D) single input.
B
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This exercise will lead you through a proof of Chebyshev’s inequality. Let X be a continuous random variable with probability density function f (x). Suppose that P(X < 0)=0, so f (x)=0 for x ? 0.
a. Show that 
.
b. Let k > 0 be a constant. Show that 
.
c. Use part (b) to show that 
. This is called Markov’s inequality. It is true for discrete as well as for continuous random variables.
d. Let Y be any random variable with mean µ Y and variance 
. Show that 
.
e. Let k > 0 be a constant. Show that P
.
f. Use part (e) along with Markov’s inequality to prove Chebyshev’s inequality: 
The subsequent problems deal with frequency response of a second-order measurement system.When the input frequency is very high (i.e., ? >> ?n), the output amplitude (kXo) is
A. very small B. 1 C. very large D. the same as the input amplitude (Fo)
ABS and PVC pipe can be used to carry the new blended refrigerants in low temperature applications.
Answer the following statement true (T) or false (F)
_____ is the shape and dimensions of a joint as viewed in cross section prior to welding.?
A. Joint root? B. Bevel angle? C. Scope? D. Joint geometry?