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) = _____.
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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Bill has 120 pecan trees that yielded 45 pounds of pecans per tree. Three-fourths of the pecans are sold as shelled nuts. A storm damaged four trees, which he cut into logs. He had four logs 12 feet long with a 32-inch diameter at the small end and three logs 8 feet long with a 22-inch diameter at the small end. He used the Doyle log rule to find the approximate number of board feet of usable lumber in the logs.
Doyle log rule formula: 
Where: BF is the approximate board feet of usable lumber in a log.
d is the diameter of the small end of the log, in.
l is the length of the log, ft.
a. How many pounds of pecans were harvested? (Note: The trees that were damaged did not have pecans.)
b. How many pounds of pecans were sold as shelled pecans?
c. How many board feet of usable lumber were in the logs?
What did early commercial and industrial control systems use to maintain the temperature in a structure, zone, or room?
What will be an ideal response?
Technician A says the parking brake cable adjustment should be performed before adjusting the rear brakes. Technician B says the parking brake cable should allow for about 15 "clicks" before the parking brake holds. Which technician is correct?
A) Technician A only B) Technician B only C) Both Technicians A and B D) Neither Technician A nor B
The driver of a vehicle with ESC has turned OFF the stability control system. What will happen the next time the vehicle is driven?
A) The ESC system will remain OFF until turned back on by the driver. B) It will depend on which driver of the vehicle enters the vehicle. C) The ESC system will return to its default ON status. D) None of these