If the receiver of an anonymous message is taken to be the adversary, then their best guess from a set of candidate senders ...

The CHOOSECOLS and CHOOSEROWS functions in Google Sheets are ideal for quickly extracting specific columns or rows from your ...

In some cases you're entitled to claim a refund if you purchased from an unauthorised secondary site, and there are steps you can take to get that refund.

School Research film See an example of the kind of research the school is working on in this film ...