### Types of probability sampling22.docx

• 1. 1 NAME: ABDULAZIZ BELLO REG NO: 2101271037 COURSE: COMMUNICATION RESEARCH DEPT: HNDI MASS COMMUNICATION (MO) TITLE: ASSIGNMENT QUESTION:  Define probability  Types of probability  Define non probability  Types of non probability INTRODUCTION Probability is the branch of mathematics concerning numerical descriptions of how likely an event is to occur, or how likely it is that a proposition is true. The probability of an event is a number between 0 and 1, where, roughly speaking, 0 indicates impossibility of the event and 1 indicates certainty. What is probability sampling? Probability sampling is a technique in which the researcher chooses samples from a larger population using a method based on probability theory. For a participant to be considered as a probability sample, he/she must be selected using a random selection. Types of probability sampling There are four commonly used types of probability sampling designs:  Simple random sampling  Stratified sampling  Systematic sampling  Cluster sampling Simple random sampling Simple random sampling gathers a random selection from the entire population, where each unit has an equal chance of selection. This is the most common way to select a random sample. To compile a list of the units in your research population, consider using a random number generator. There are several free ones available online, such as random.org, calculator.net, and randomnumbergenerator.org.