In statistics, what is the benefit of taking a sample survey rather than a census?

Taking a sample survey is quicker, cheaper and easier to carry out than a census. 

EG

Related Further Mathematics A Level answers

All answers ▸

What is the complex conjugate?


Find the general solution of y'' - 3y' + 2y = 2e^x


Let E be an ellipse with equation (x/3)^2 + (y/4)^2 = 1. Find the equation of the tangent to E at the point P where x = √3 and y > 0, in the form ax + by = c, where a, b and c are rational.


Prove e^(ix) = cos (x) + isin(x)