Examlex
What is the central feature of the civil service system?
Random Sample
A sample drawn in such a way that every member of the population has an equal chance of being selected.
Null Hypothesis
A statement used in statistical testing, which proposes that no significant difference exists between certain characteristics of a population.
Fuel Economy
Fuel economy refers to the efficiency of a vehicle in using fuel, typically expressed in miles per gallon (mpg) or liters per 100 kilometers (L/100km), indicating how far a vehicle can travel on a specific amount of fuel.
Diesel Engine
An internal combustion engine in which heat produced by the compression of air in the cylinder is used to ignite the fuel.
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