We divide the overburden thickness by ore thickness to get the stripping ratio For example if we have an overburden thickness of 80m and ore thickness of 50 m , then the stripping ratio will be: 80/50= 1.6
Overburden tons/ore tons
There is no single formula.It is necessary to calculate the total sum of squares and the regression sum of squares. These are used to calculate the residual sum of squares. The next step is to use the appropriate degrees of freedom to calculate the mean regression sum of squares and the mean residual sum of squares.The ratio of these two is distributed as Fisher's F statistics with the degrees of freedom which were used to obtain the average sums of squares. The ratio is compared with published values of the F-statistic since there is no simple analytical form for the integral.
=max(z1:z10) =min(z1:z10) =average(z1:z10)
It is a ratio scale of measurement.
The year is interval scale (no natural zero); your age is ratio.
Overburden tons/ore tons
Yes, a 3:1 stripping ratio means that mining one cubic meter of ore will require mining three cubic meters of waste rock.
the stripping ratio fot the last increment alomg the pit wall. it determines whether one should continue mining using open pit(surface) or switch to uderground.
Formula to calculate the ratio
Stripping ratio is the quantity of waste material that must be removed to extract a unit of ore. It is calculated by dividing the volume of waste material by the volume of ore. A higher stripping ratio indicates a larger amount of waste material that needs to be removed to access the desired ore.
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No. It can be but need not be. For example, you might calculate the ratio of today's temperature in Celsius and in Fahrenheit and calculate the ratio. That is not a rate.
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PV ratio= contribution/sales*100
multiplication