Tesla and SpaceX billionaire Elon Musk said Friday his Twitter buyout was temporarily on hold. Musk said he will conduct his own research into how many Twitter users are fake accounts. Twitter said in ...

Sampling is a technique in which samples are drawn at random (without any favor or bias). For this, suitable measures or procedures may be laid down and adopted according to the nature and ...

Survey researchers increasingly recognize that a single survey of the general public can rarely represent the views of small groups of Americans. Such surveys frequently have too few interviews with ...