Examlex
While driving down the highway, your car must overcome the forces of friction and air
necessary to keep a car moving at a constant speed.While driving the car a distance of
100,000m, the car burns up 10.6 liters of gasoline.If gasoline contains 100,000,000 joules of
potential energy per liter, what is the efficiency of the car's engine?
Degrees of Freedom
The number of independent values or quantities which can vary in an analysis without breaking any constraints.
T Distribution
A probability distribution that is used to estimate population parameters when the sample size is small and the population variance is unknown.
Population Mean
The average of a set of values in the entire population.
Sample Standard Deviation
A measure of the amount of variation or dispersion of a set of values from a sample, indicating how spread out the values are from the mean of the sample.
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