http://www.aaa3.net/how-to-scale-data/
My son has this as a math problem:choose a convenient scale and interval for each data?
85,32,91,15,24 scale_________ interval_________
324,430,125,63,260 scale_________ interval_________
The idea here is that you might want to graph the data, so you have to choose what numbers your graph covers. Imagine marking these numbers on a tape measure. If you had a tape measure that went from 0 to 50 inches, it’d be terrible for marking these numbers, since most of them would be off the end of the tape.
For the first set, a scale that goes from 0 to 100 would be good. The lowest number is 15, the highest is 91, these fit well in 0-100.
For the second set, a scale from 0 to 500 would be good, as the lowest number is 63 and the highest is 430.
As for the interval between points, what’s convenient depends on how you’re graphing these.
How to Scale Data Storage Systems with Clustering
