Question

how do you find or calculate the ratio scale?

Answer 1

Ratio scale is a measurement scale of variable which are quantitative in nature. The most special feature of this type of scale is that it has a true zero point which means it has a starting value from zero. This is the major difference when compared to interval scale. Example height, distance ,age, weight all are example of ratio scale as it has a starting value from absolute zero point. These values can never be negative.But temperature is a interval scale as it can be negative.

So this is way how we can recognize whether a data is ratio scaled data or not. It can be measured using different scales of units like cm, km ,kg ,Rs and many more.

Calculation.

Suppose we want to draw the distance of 100km on a map. But drawing 100km is not possible on a piece of paper. Hence we can represent that 100km as 2cm on map and can write the ratio as 2cm: 100km which means 2cm on map is equal to 100km on real road.

To remove the units it is must we convert the km in cm. So 100km = 10000000 cm.

Now can be written as 2:10000000 = 1:5000000 as the final ratio.

This is just an explanation of ratio scale used to calculate the distances.

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