Stereology Error Calculator

 
Calculate POINTS NEEDED with known Standard Error and VV
Coverage of object as a fraction of 1 (0 to 1): fraction (VV)
Desired margin of error in % (>0 to 100): % error (E)
The Answer:
Point counts required: points (PT)

 
Calculate STANDARD ERROR with known PT & VV
Coverage of object as a fraction of 1 (0 to 1): fraction (VV)
Number of points counted: points (PT)
The Answer:
margin of error in %: % error (E)

This is based on the equation: Pt = 0.453 * (1 - VV) / (VV * E2)