To provide greater flexibility and improved methodology for random digit dialing for telephone surveys, this article proposes a class of two-stage sampling techniques for random digit dialing that ...

Random numbers fuel our digital lives, but they’re notoriously difficult to generate properly. Now, scientists have shown that smartphone cameras can be used as quantum random number generators—and it ...

Mathematicians concerned with cryptography need novel ways of generating random numbers in order to securely transmit data such as a credit card number or especially private email. But it's hard for ...

How well do you understand decimal place value with 4-digit whole numbers? In this fun primary maths game you get a starting number, such as 3786, and work towards turning it into a target number, ...

This is a preview. Log in through your library . Abstract It is empirically well established that in large collections of numbers the proportions of entries with the most significant digit A is ${\rm ...