about

Interquartile, Median, Minimum and Maximum

Net present Value

​internal rate of return

CameraCalc iPhone apps allow you to solve a statistics or finance problem by taking a picture of a list of numbers.  It started with our standard deviation app which was the very first camera calculator, our suite of apps grew from there. A list of our apps is below.

Payback period

sum of squares of deviations

​Standard deviation