THE NEXT QUESTIONS ARE BASED ON THE FOLLOWING INFORMATION

question 172

Essay

THE NEXT QUESTIONS ARE BASED ON THE FOLLOWING INFORMATION:
A continuous random variable X has the probability density function: f(x)= 2e^-2x,x ≥ 0.
-Find the mean and standard deviation of X.

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Definitions:

Tandem Drive

Tandem drive refers to a vehicle configuration where two sets of drive axles are arranged in a row, commonly seen in heavy-duty trucks, to distribute weight and increase traction.

Axles

Mechanical components that connect wheels on opposite sides of a vehicle, transferring power from the drivetrain to the wheels for movement.

Freight Volume

The amount of goods, cargo, or freight being transported or capable of being transported.

Vocational

medium- and heavy-duty trucks used for specific work applications rather than linehaul. Examples would be dump trucks, milk tankers, fire trucks, cement trucks, cranes, fuel tankers, etc.