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Productivity
The ratio of speed of light in a given pair of media , gives us a measure of the extent of refraction of a ray of light as it goes from one medium to another. We use this ratio to define a term called the relative refractive index for a given pair of media . A relative refractive index is light that passes from one transparent medium to another.
Theoretical probability.
Coefficient of Determination
standard deviation is the square roots of variance, a measure of spread or variability of data . it is given by (variance)^1/2
Productivity
The measurement of work done is the same measure we use for energy output. This measurement is called the joule and is symbolized simply by the letter j.
it is called output
It's given in the units called: BHP=Brake Horse Power
measures the value of output during a given year using the prices prevailing during that year
That would be the yield.
2) what is an output device that prints output on paper? and an output that is printed on paper?
Potential output is the capacity to produce should all factors be employed in an economy. For example, it is the output should there be no unemployment, no spare labour and no spare capital. It is unlikely that actual output will be the same as potential ouput since there is always unemployment.
we can make the project on topic you are given with.
A good start is the input a factory must have (raw materials), a process (what the factory makes/how they make it), and the profitable output the factory sells. One can illustrate this easily given the basic input/output.
The measure of heat in a given place is called the temperature.
An investigatory project on machines can be divided into different focuses and information collected on each category. Good areas to focus on include fuel consumption and the product output per given amount of running time.