The questions in this quiz are suitable for GCSE maths students studying approximation, rounding to decimal places, rounding to significant figures, truncation, estimating calculations, limits of ...

Quick: How many people did you see on the way home from work the other day? Was it more or less than the day before? Regardless of your answer, it's likely you can't explain what led you to it. Number ...

Pi Approximation Day falls on July 22 (written as 22/7 in the day/month date format). It commemorates the common approximation of the mathematical constant π as 22⁄7, which dates back to Archimedes ...

Audrey Harrington is a seventh-grade math teacher at the Wilson County School System's Southside Elementary School in Lebanon, Tenn. Online video games plus curriculum-based math equals an engaging ...

Theory on semi-parametric efficient estimation in missing data problems has been systematically developed by Robins and his coauthors. Except in relatively simple problems, semi-parametric efficient ...

An approximation is proposed for the posterior mean and standard deviation of the ability parameter in an item response model. The procedure assumes that approximations to the posterior mean and ...