Electric furnaces use ____ to convert electricity into heat.
A. reduction
B. inversion
C. resistance
D. conduction
Answer: C
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Refer to Exercise 31. Assume the first card is not replaced before the second card is drawn.
a. Find the joint probability mass function of X and Y.
b. Find the marginal probability mass functions 
(x) and 
(y).
c. Find 
and 
.
d. Find 
.
e. Find Cov(X, Y).
Express 3.7% as a decimal number.
What will be an ideal response?
The reliability of power from the national electrical grid is presently _____
a. 72.4 percent b. 86.8 percent c. 98.2 percent d. 99.9 percent
Type MC cable is a factory assembly of one or more insulated circuit conductors with or without optical fiber members enclosed in an armor of ____ metal tape, or a smooth or corrugated metallic sheath.
What will be an ideal response?