When performing 10 experiments the RV X produces the following realizations: "2, 1, -1, 0, 3, 5, -1, 2, 0, 1" Ave(X) = _____ and Var(X) = _____.
What will be an ideal response?
The ten X values sum to 12 -> 12/10 = 1.2
The squares of the ten X values sum to 46, producing Ave(X2) = 4.6. (Ave(X))2 = 1.44, making Var(X) = 3.16
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Petroleum was formed from ____
a. marine phytoplankton b. freshwater deposits of herbaceous plants c. minerals similar to coal d. carboniferous rock
____________________ is the practice of cultivating land to raise food, feed, fiber, or fuel from crops or livestock
Fill in the blank(s) with correct word
What is meant by the “critical point” of refrigerants like CO2?
a. The temperature above which it can’t condense no matter how high the pressure. b. The temperature where it exists in 3 states: liquid, vapor, and solid. c. The temperature at which it may explode if too much pressure is applied.
The crossover circuit in Fig. 14.108 is a lowpass filter that is connected to a woofer. Find the transfer function H(?) = V?(?)/Vi(?).
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