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. 

Related Further Mathematics A Level answers

All answers ▸

How to multiply and divide by complex numbers


Let A, B and C be nxn matrices such that A=BC-CB. Show that the trace of A (denoted Tr(A)) is 0, where the trace of an nxn matrix is defined as the sum of the entries along the leading diagonal.


Find the general solution to the differential equation: d^2y/dx^2 - 8 dy/dx +16y = 2x


If the complex number z = 5 + 4i, work out 1/z.


We're here to help

contact us iconContact usWhatsapp logoMessage us on Whatsapptelephone icon+44 (0) 203 773 6020
Facebook logoInstagram logoLinkedIn logo
Cookie Preferences